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Returning to the Moon
and Going to Mars

Something for all the pessimists
and naysayers out there

 

Space Quotes to Ponder
What famous people (and some not famous) have said about why humankind must expand into Space


"We can continue to try and clean up the gutters all over the world and spend all of our resources looking at just the dirty spots and trying to make them clean. Or we can lift our eyes up and look into the skies and move forward in an evolutionary way"
-Edwin "Buzz" Aldrin

 
 
I Heart the ISS: Ten Reasons to Love the International Space Station

It’s been called a white elephant, an orbital turkey, a money pit, and an expensive erector set. Seemingly, even many people at NASA think building it was a mistake. The International Space Station has been plagued with repeated delays, cost overruns, and bad press. Additionally, the ISS has never really caught the fancy of the general public and most likely there’s a fair percentage of the world’s population who have absolutely no idea there’s a construction project the size of two football fields going on in orbit over their heads.

Nancy Atkinson
Feb 2008

But I’m going to be honest. I’ll come right out and say it: I really like the ISS. In fact, I’m crazy about it, and have been ever since Unity docked with Zarya back in 1998. Yes, my heart belongs to the space station, and since its Valentine’s Day, I’m going to profess my feelings here and now with ten reasons why I love the International Space Station:
(In no particular order:)

1. International Cooperation. Didn’t your heart swell with pride for the Europeans when the Columbus science module finally became part of the station this week? And you gotta love the Canadians for their reliable, heavy-duty Canadarm 2. The Russians have been steady partners in station construction and re-supply for years now. Japan’s science lab will be added on the next shuttle mission. The ISS is the largest, most complex, international engineering project in history. In a world where violence and political animosity floods the daily news, it’s incredible that this structure is quietly being built by 16 different countries working together in relative harmony. If not for the international partners, the ISS probably wouldn’t have gotten off the ground. NASA Administrator Mike Griffin has said that the station’s most enduring legacy is the international partnership that created it.

2. Actually Building an Outpost in Space. The dream of almost every post-Apollo space enthusiast is to have a settlement or colony in space. As humble as it is, the ISS is exactly that. Humans have been living on board the station for over 7 years now. The experience of constructing and living aboard this complex structure in space is invaluable, and any future outpost will benefit from what’s been learned with the ISS.

3. The Personalities. Peggy Whitson, the first female station commander. Clay Anderson’s unique sense of humor. Suni Williams’ marathon and haircut for cancer patients. Mike Lopez-Alegria’s music. Mikhail Tyurin’s golf shot. Yuri Malenchenko’s wedding. Frank Culbertson’s September 11 perspective. Yury Usachev’s spinning antics. It goes all the way back to the three-way fist pump on Expedition One between Bill Shepherd, Sergei Krikalev, and Yuri Gidzenko. With the Expeditions lasting 4-8 months, we have the opportunity to get to know the astronauts and cosmonauts that live and work on board the ISS. If you watch the daily feeds from the ISS or listen to the periodic press conferences, you can become familiar with the different personalities of the station crews. The number one personality has to be Don Petit and his Saturday Morning Science.

4. You can see it almost every night. I’ve witnessed jaws dropping and eyes widening in wonder when people see the ISS for the first time gliding silently and swiftly across the night or early morning sky. I never tire of observing it. Find out when the station will fly over your backyard at NASA’s website or at the Heaven’s Above website.

5. No major problems so far. One of the real impressive things about the ISS is that all the components, built by different countries and contractors have fit together perfectly. Yes, there have been intermittent computer issues, a faulty smoke alarm and the torn solar arrays. But these problems have all been resolved in short order. The damaged SARJ (Solar Alpha Rotary Joint) is a looming issue that could be problematic. But there are some first-rate engineering minds working on this matter, and it appears they have time to come up with a solution. The station has never had a major calamity or had to be evacuated in over 7 years of continuous human occupation. Knock on a Whipple Shield.

6. The general public can participate. Schools and informal education centers can conduct live question and answer sessions with space station crews. Middle school students can choose locations on Earth for the ISS crew to take pictures as part of the EarthKAM project. Ham radio operators can talk regularly with astronauts and cosmonauts with the ARISS (Amateur Radio on the ISS.) College students can design projects to be researched on board the station. And of course if you have $40 million in spare change you can ride to the ISS on a Soyuz as a spaceflight participant.

7. Finally, we have science officers. The other dream of every post-Apollo space enthusiast (and Star Trek fans) is to have science officers to conduct real scientific research. The ISS has had science officers since 2002, but science hasn’t been in the forefront of the work on board the ISS. Yet.

8. Long term research. The ability of the ISS to serve as a platform for science has come under fire. But what other lab has been expected to produce scientific results while still under construction? With the addition of the European and Japanese science labs, and the expected increase in crew size from three to six in 2009, scientific research, the original purpose of the station, will finally be able to be conducted with consistency. The microgravity environment of the ISS allows the study of long-term effects of weightlessness on the human body, crucial for any future human exploration on the moon and Mars. Research will help fight diseases such as diabetes, cancer, osteoporosis, and AIDS. The station provides a unique place to test technologies such as life support systems and new manufacturing processes, and gives us a long-term platform to observe and understand Earth's environment and the universe.

9. Post docking fly-arounds. After each construction mission to the ISS, the shuttle’s post docking fly-around gives us a chance to see the new additions and latest configuration of the station. The astronauts say it’s a thrill to see how their handiwork on a specific mission fits into the big picture of the entire ISS, and it’s a thrill for us back on Earth to see the station’s new look, too. Plus the fly-around usually gives the shuttle pilot some actual stick time to fly the shuttle and a little time in the limelight.

10. What else would we be doing? Many people feel that the ISS’s tremendous budget has taken funds away from robotic exploration and other science. I can’t argue with that. But when it comes to human spaceflight, what else would we have been doing for the past 10-20 years? A space station was the logical next step after the shuttle. The main problem is that it took so long to decide on a plan, get it approved by Congress and get it in the works with international cooperation. But now, with construction and maintenance ongoing, we’re constantly and continually learning how to live and work in space. The ISS is a resource that will guide us on our future human endeavors in space. It’s more than just an obligation to finish and then be disregarded. The planning and funding for its future should encompass the maximum utilization of its fullest potential.

In my eyes, the International Space Station is a thing of beauty, a work of art, an engineering marvel, and a constant companion that I watch for every night as it orbits our planet. The ISS should be given all the respect, and love, it deserves.
 
Can You Survive in Space Without a Spacesuit?

The sci-fi movie Sunshine gets it almost right

By Morgan Smith
Aug. 1, 2007

In the new sci-fi film Sunshine, an astronaut named Mace must leave his spacecraft without a protective suit. He makes it through his exposure with only a case of frostbite. Could you really survive outer space without a suit?

Yes, for a very short time. The principle functions of a spacesuit are to create a pressurized, oxygenated atmosphere for astronauts, and to protect them from ultraviolet rays and extreme temperatures. Without it, a spacewalker would asphyxiate from the lack of breathable air and suffer from ebullism, in which a reduction in pressure causes the boiling point of bodily fluids to decrease below the body's normal temperature. Since it takes a bit of time for these things to kill you, it's possible to make it through a very quick stint in outer space.

At most, an astronaut without a suit would last about 15 seconds before losing conciousness from lack of oxygen. (That's how long it would take the body to use up the oxygen left in the blood.) Of course, on Earth, you could hold your breath for several minutes without passing out. But that's not going to help in a vacuum. In fact, attempting to hold your breath is a sure way to a quick death. To make it for even a few seconds, Sunshine's Mace must have expelled the air from his lungs before he ventured into the starry void. If he hadn't, the vacuum would have caused that oxygen to expand and rupture his lung tissue, forcing fatal air bubbles into his blood vessels, and ultimately his heart and brain. Scuba divers are also at risk for air embolism; they're instructed not to hold their breath as they ascend from the deep sea.

An astronaut who fell unconscious from lack of oxygen would last for a few minutes more before dying from asphyxiation or the effects of the pressure reduction. Ebullism would result in the formation of bubbles in the moisture found in the eyes, mouth, and skin tissue. One NASA test subject who survived a 1965 accident in which he was exposed to near-vacuum conditions felt the saliva on his tongue begin to boil before he lost consciousness after 14 seconds.

In the movie, Mace takes the precaution of wrapping himself in insulation torn from the walls of the spacecraft he's leaving. This might provide some protection against temperatures in space that can run from minus-200 to 200 degrees Fahrenheit. It might also ward off ultraviolet-related skin damage during a short jump through space.

What about the frostbite? That's actually the least plausible result of Sunshine's suitless spacewalk. The cold wouldn't cause Mace too much harm in just 15 seconds, even if he encountered the very lowest temperatures in space. That's because heat leaves the body very slowly in a vacuum. The more likely damage would be a "space hickey"caused from the swelling and bursting of the skin's small blood vesselswhich would look more like the effects of freeze-drying a wart than a case of frostbite.
 
A Survival Imperative for Space Colonization

In 1993, J. Richard Gott III computed with scientific certainty that humanity would survive at least 5,100 more years. At the time, I took that as reason to relax, but Dr. Gott has now convinced me I was wrong. He has issued a wake-up call: To ensure our long-term survival, we need to get a colony up and running on Mars within 46 years.

July 17, 2007
New York Times

If youre not awakened yet, I understand. Its only prudent to be skeptical of people who make scientific forecasts about the end of humanity. Dr. Gott, a professor of astrophysics at Princeton, got plenty of grief after he made his original prediction in 1993. But in the ensuing 14 years, his prophetic credentials have strengthened, and not merely because humanity is still around.

Dr. Gott has used his technique to successfully forecast the longevity of Broadway plays, newspapers, dogs and, most recently, the tenure in office of hundreds of political leaders around the world. He bases predictions on just one bit of data, how long something has lasted already; and on one assumption, that there is nothing special about the particular moment that youre observing this phenomenon. This assumption is called the Copernican Principle, after the astronomer who assumed he wasnt seeing the universe from a special spot in the center.

Suppose you want to forecast the political longevity of the leader of a foreign country, and you know nothing about her country except that she has just finished her 39th week in power. What are the odds that shell leave office in her 40th week? According to the Copernican Principle, theres nothing special about this week, so theres only a 1-in-40 chance, or 2.5 percent, that shes now in the final week of her tenure.

Its equally unlikely that shes still at the very beginning of her tenure. If she were just completing the first 2.5 percent of her time in power, that would mean her remaining time would be 39 times as long as the period shes already served 1,521 more weeks (a little more than 29 years).

So you can now confidently forecast that she will stay in power at least one more week but not as long as 1,521 weeks. The odds of your being wrong are 2.5 percent on the short end and 2.5 percent on the long end a total of just 5 percent, which means that your forecast has an expected accuracy of 95 percent, the scientific standard for statistical significance.

And you can apply this Copernican formula to lots of other phenomena by assuming theyre neither in the first 2.5 percent nor the final 2.5 percent of their life spans.

Now, that range is so broad it may not seem terribly useful to you, and Dr. Gott readily concedes that his Copernican formula often is not the ideal method. The best the formula could do regarding Bill Clinton, who had been president for 127 days when the 1993 paper in Nature was published, was predict he would serve at least three more days but not more than 13.6 more years. You could have gotten a narrower range by using other information, like actuarial data from previous presidencies, or factoring in the unlikelihood that the Constitution would be changed so he could serve more than two terms.

But the beauty of the Copernican formula is that it allows you to make predictions when you dont have any other information, which is how Dr. Gott managed to predict the tenure of virtually every other nations leader that day in 1993 a total of 313 leaders. If none of those still in power stays in office beyond age 100, Dr. Gotts accuracy rate will turn out to be almost exactly 95 percent.

Some philosophers and experts in probability theory have argued that Dr. Gott is making unwarranted deductions from past life spans, and that it is wrong to assume there is nothing special about the moment weve chosen to make a forecast. (See www.tierneylab.com for details of the debate.) But last year two philosophers, Bradley Monton and Brian Kierland, analyzed the criticisms and concluded in an article in the Philosophical Quarterly that Dr. Gott had indeed come up with a useful tool for difficult situations like trying to forecast doomsday without data from other planets.

The Copernican formula predicts, based solely on our 200,000-year track record, that the human race is likely to survive at least 5,100 more years but not longer than 7.8 million roughly the same prediction youd make based on the longevity of past mammals on Earth, Dr. Gott says.

That upper limit is a disappointment to those of us who imagine humans multiplying across the universe for billions of years. Dr. Gott doesnt rule out that possibility, but the Copernican Principle makes him conclude it is unlikely.

After all, if colonization is common and theres nothing special about our civilization, why havent we already colonized other worlds? Why arent we colonists ourselves from a civilization somewhere else?

If you think of yourself as a randomly chosen individual among all the intelligent beings who ever lived in the universe, then the odds are youre living in one of the larger and older civilizations simply because a lot more people have lived in those than in small, short-lived civilizations.

The sobering facts, Dr. Gott says, are that in a 13.7 billion-year-old universe, weve only been around 200,000 years, and were only on one tiny planet. The Copernican answer to Enrico Fermis famous question Where are the extraterrestrials? is that a significant fraction must be sitting on their home planets.

It might seem hard to imagine that humans would invent rockets and then never use them to settle other worlds, but Dr. Gott notes that past civilizations, notably China, abandoned exploration. He also notes that humans have been going into space for only 46 years a worrisomely low number when using Copernican logic to forecast the human spaceflight programs longevity.

Since theres a 50 percent chance that were already in the second half of the space programs total lifespan, Dr. Gott figures there is a 50 percent chance it will not last more than another 46 years. Maybe the reason civilizations dont get around to colonizing other planets is that theres a narrow window when they have the tools, population and will to do so, and the window usually closes on them. In 1970 everyone figured wed have humans on Mars by now, but we havent taken the opportunity, Dr. Gott says. We should it do soon, because colonizing other worlds is our best chance to hedge our bets and improve the survival prospects of our species. Sooner or later something will get us if we stay on one planet. By the time were in trouble and wish we had that colony on Mars, it may be too late.

You could argue that hes being too pessimistic about space exploration. The space program may be only 46 years old, but humans have been exploring new territory for tens of thousands of years, so by Copernican logic perhaps theyll keep it doing it far into the future. But given recent trends after going to the Moon, we now barely send humans into orbit hes right to be worried.

If its true that civilizations normally go extinct because they get stuck on their home planets, then the odds are against us, but theres nothing inevitable about the Copernican Principle. Earthlings could make themselves the statistical anomaly. When extinction is the norm, you may as well try to be special.
 
Hawking Says Space Colonies Needed

The survival of the human race depends on its ability to find new homes elsewhere in the universe because there's an increasing risk that a disaster will destroy Earth, world-renowned physicist Stephen Hawking said Tuesday.

Forbes.com
June 2006

Humans could have a permanent base on the moon in 20 years and a colony on Mars in the next 40 years, the British scientist told a news conference.

"We won't find anywhere as nice as Earth unless we go to another star system," added Hawking, who came to Hong Kong to a rock star's welcome Monday. Tickets for his lecture Wednesday were sold out.

Hawking said that if humans can avoid killing themselves in the next 100 years, they should have space settlements that can continue without support from Earth.

"It is important for the human race to spread out into space for the survival of the species," Hawking said. "Life on Earth is at the ever-increasing risk of being wiped out by a disaster, such as sudden global warming, nuclear war, a genetically engineered virus or other dangers we have not yet thought of."

The 64-year-old scientist - author of the global best-seller "A Brief History of Time" - uses a wheelchair and communicates with the help of a computer because he suffers from a neurological disorder called amyotrophic lateral sclerosis, or ALS.

One of the best-known theoretical physicists of his generation, Hawking has done groundbreaking research on black holes and the origins of the universe, proposing that space and time have no beginning and no end.

However, Alan Guth, a physics professor at the Massachusetts Institute of Technology, said Hawking's latest observations were something of a departure from his usual research and more applicable to survival over the long-term.

"It is a new area for him to look at," Guth said. "If he's talking about the next 100 years and beyond, it does make sense to think about space as the ultimate lifeboat."

But, he added, "I don't see the likely possibility within the next 50 years of science technology making it easier to survive on Mars and on the moon than it would be to survive on earth."

"I would still think that an underground base, for example in Antarctica, would be easier to build than building on the moon," Guth said.

Joshua Winn, an astrophysicist at the California Institute of Technology, agreed. "The prospect of colonizing other planets is very far off, you must realize," he said.

Hawking's "work has been highly theoretical physics, not in astrophysics or global politics or anything like that," Winn added. "He is certainly stepping outside his research domain."

Hawking's comments Tuesday were reminiscent of the work of American astrophysicist Carl Sagan, who was a believer in the existence of extraterrestrial intelligence.

Sagan, a Cornell University professor and NASA-decorated scientist who died in 1996, noted that organic molecules, the kind that life on Earth is dependent on, appear to be almost everywhere in the solar system.

Sagan played a leading role in the U.S. space program, helping design robotic missions and contributing to the Mariner, Viking, Voyager and Galileo expeditions.

But his work also focused on the search for habitable worlds and intelligent life beyond the solar system, as well as theories about life's origins, ideas popularized in his best-selling 1985 novel, "Contact," which was made into a film starring Jodie Foster.

At Tuesday's news conference, Hawking said he to was venturing into the world of fiction. He plans to team up with his daughter, 35-year-old journalist and novelist Lucy Hawking, to write a children's book about the universe aimed at the same age group as the Harry Potter books.

"It is a story for children, which explains the wonders of the universe," said Lucy Hawking. They did not provide further details.
 
Profits set to soar in outer space

Prepare for liftoff: The space business may be the most incredible new opportunity of your lifetime.

By Chris Taylor, Business 2.0 Magazine
February 27, 2006

(Business 2.0) - Let's not wax sentimental about our space exploits thus far. The Apollo era was heroic, but beating the Soviets to the moon never provided a compelling economic reason to return. (We didn't even get Teflon or Tang as spinoffs--both were invented before 1960.)
Space spending soars

The shuttle and the international space station continued this record of dismal return on investment. Small wonder, then, that most private-sector investors have focused instead on more earthly pursuits. Only one thing will prod us into the cold, hard vacuum of space, and that's the prospect of earning cold, hard cash.

Fortunately, there's now a lot of that to go around. Worldwide government spending on space is soaring to $50 billion a year, a 25 percent jump over 2000. NASA represents only $16 billion of that total, but during the next 20 years, the U.S. space agency is likely to sign contracts totaling as much as $400 billion to launch a human mission to Mars.

We are also well into the commercial space age. In 1998, private-sector spending on space applications began to exceed government spending, and the gap is widening. A critical mass of entrepreneurs -- some with familiar names like Bezos and Branson -- have been backing space-related companies for years. In the coming months, their efforts will reach blastoff stage (quite literally). Some of the markets they're targeting, like the $4 billion satellite launch business being pursued by PayPal founder Elon Musk, are ripe for competition. But most, such as suborbital tourism, space hotels, and solar satellites, don't yet exist. All, however, have the potential to generate astronomical returns during the next decade.

Building infrastructure is the first step, and here historical analogies abound. The federal government is poised to begin contracting with the private sector to deliver cargo into orbit, a trend that could nurture a market for civilian spaceflight in much the same way that airmail contracts from the Post Office spurred the development of civil aviation a century ago. Prize money -- the incentive that launched Charles Lindbergh -- is now being offered for everything from building a machine to extract oxygen from lunar soil ($250,000) to building an aircraft capable of delivering tourists to orbit by 2010 ($50 million).
Opening up the Wild West

Meanwhile, new technologies are opening up new possibilities. Consider the space elevator, which is enabled by the advent of lightweight carbon nanotubes; a 62,000-mile elevator to the heavens would reduce orbital freight costs by 98 percent and open up space just as the railroads opened up the Wild West.

The long-term possibilities are even more celestial. Ever heard of 3554 Amun? It's a space rock about 2 kilometers in diameter that looks as if it might have fallen straight out of The Little Prince. There are three key things to know about 3554 Amun: First, its orbit crosses that of Earth; second, it's the smallest M-class (metal-bearing) asteroid yet discovered; and finally, it contains (at today's prices) roughly $8 trillion worth of iron and nickel, $6 trillion of cobalt, and $6 trillion of platinumlike metals. In other words, whoever owns Amun could become 450 times as wealthy as Bill Gates. And if you time your journey right -- 2020 looks promising -- it's easier to reach than the Moon.

That doesn't mean it's easy, of course; nothing worthwhile ever is. The automobile, commercial air travel, the PC, the Internet, the cell phone -- all took decades to reach their full potential, and none would have taken root without stubborn entrepreneurs who refused to heed conventional wisdom. The greatest barrier to the open markets of space isn't physical or technological; it's psychological. But for those who have the right stuff, the rewards may prove greater than anything the Apollo astronauts ever imagined.
 

Challenger Go at Throttle Up

by Chris O'Kane
28 Jan 2006
 

People say they remember where they were when they heard the terrible news.  I believe that. I recall where I was too. I was at my brothers house, playing snooker with my young nephew.  The report came on the BBC TV news.  There was a sick, empty feeling that left me numb. The same feeling Id had when they reported the murder of John Lennon. A feeling of deep loss. 

On 28th. January 1986 the space shuttle Challenger, one of four orbiters, exploded 73 seconds into its flight a few miles above the millions of people gathered at Kennedy Space Centre.  The large crowd was there to send off another shuttle crew and the first civilian into orbit around the Earth for a few days.  It was becoming routine to see shuttles going off on various missions. They said this is the way it would be in the future, after the first launch.  My memory took me back to April 1981 and the press site at KSC. The feel of the cold, damp air evaporating as the warm Florida sun rose on the dawn of a new era. No longer would astronauts perch atop monstrous rockets in cramped capsules. This was the era of the Space Shuttle.  The first spaceship to fly back to earth to be cleaned up, serviced, re-stacked to its boosters and fuel tank and sent up again within a few months.  They said that once the first 4 test flights were complete we could expect a launch per month. 

I had put spaceflight to back of my mind. I was aware of all the science going on in orbit. Of ESAs Spacelab missions, satellite launches and other missions.  By 1986 NASA had four operational orbiters; Columbia, Endeavor, Discovery and Challenger.  To many spaceflight had become pass and no longer a big event covered live by the media.  The maiden launch of Columbia in April 1981 was the last live coverage of a manned spacecraft by the BBC or any other UK TV channel. The last until the 2005 launch of Discovery, which was the return to flight of the shuttle programme after the tragic loss of Columbia during re-entry in 2003.  I grew up watching Apollo missions to the Moon live on TV.  All of the Apollo missions were televised live. The whole world tuned in to watch the awesome spectacle of a Saturn V rocket launch. The biggest and most powerful machine ever constructed.   It was an exciting show.  The big build up to the final countdown, followed by the awesome image of the massive rockets blasting up from the launch pad. They were big TV events, everyone stopped to watch. 

As the sad news came over the TV and the horrific images were repeated over and over I recalled my experiences and feelings when I saw Columbia blast off for that first flight.  The restless crowd pushing towards the edge of the canal basin, 3 miles from the launch pad, many frantically shouting GO! The excitement rising as the countdown reached zero. The massive, billowing clouds of white smoke as the engines fired and the brilliant light as the shuttle rose from its pad. A few seconds later to be followed by the rumble that grew to a crackling, ear splitting roar, as the explosion of gas from the engines beat the air for miles around with a tremendous shockwave.  20 seconds later the shuttle vanished out of sight behind a static column of steam and smoke that was standing up into the clear blue sky like a giant white pillar.  A few minutes later those with binoculars saw the solid rocket boosters separate and a loud cheer went up. Columbia was on its way into orbit. It was a powerful and moving experience. Almost religious. 

I tried not to watch or listen. The news was so terrible. It was a nightmare come true.  I was so glad I wasnt there that fateful day to witness it. I would not want to be among the crowd that day.  It was the last place in the world I would want to be.  The investigation that followed the disaster told a tale of woe. Staggering mistakes and mismanagement. Warnings from engineers in the know were ignored.  I suspect political pressure from Washington was put upon NASA to ensure that the civilian teacher Christa McAuliffe was in orbit to coincide with President Reagans State of the Union Speech. Im sure it would have look impressive for the free world had it happened. But as pointed out in the final analysis by physicist Richard Feynman, no matter how much they wanted the shuttle to fly it would not. Nature cannot be fooled If something is designed and engineered badly it will fail. 

Bruce Murray, director of JPL and controller of many successful planetary missions, summed it all up by saying we lost seven brave and admirable people launching a satellite.  The debate about the value of manned spaceflight continues today. As NASA struggle to get the shuttle program back on track in order to fulfill its need to complete the International Space Station.  In the face of some outstanding successes with unmanned probes to Mars and Saturn, people are asking if it is necessary at all to send anyone into space?  This is a fair argument when we consider the cost and risk of sending people into space.  There needs to be good justification for it.  Pro space enthusiasts will tell you that there is no better computer or machine than a human being. And that humans are the best explorers.  However, humans are not as tough as robots.  Were getting some great science done with small machines on far away worlds, and at no risk to us except financial.  So, understandably we hear the question why are we in space?  The reply is often that we are a curious species and its in our nature to explore.  But at what cost?  There are many pressing needs here on Earth. We could build a lot of hospitals for the money being spent on space. Which is but a fraction of the cost being spent on war. So should we end war before we go any further into the cosmos?   So many arguments, so many choices.

But mans curiosity and intelligence is what drives us forward as a technological civilisation.  If we do not strive to understand more about the universe we live in we are doomed to fail. It is as H.G. Wells said  All the universe or nothing.  If we do not go to the Moon, Mars and beyond then all the combined struggles and strife of mankind is for naught.  We shall fade away and perish as the dinosaurs did. One species out of millions that came and went. The only proof that we ever existed would be the probes we left on other planets and the long distance voyagers we sent out of the solar system. If we want to survive and achieve immortality among the stars, then we must leave the cradle of civilisation.  This is the ultimate goal of mankind.  It may not be governments that pioneer the way though. They may fail to have the political courage and long-term vision. It may be the wealthy individuals acting together.  Private space flight is now a reality. At the dawn of commercial aviation, it was the entrepreneur who led the way. Governments couldnt see the need for air travel.  Now it is the same with space travel. The US government wants to apply aviation laws and guidelines to private operators.  Perhaps this is a sign that space travel will become as popular as air travel within 100 years.  History may repeat itself. Keep watching the skies. 

But if it were not for the brave pioneers who led the way into space, there would be no private space programmes, no ambition for people to go and no dreams of great achievement.  The cost has been high but the way to the stars is now open. Its up to us if we want to take it.  Where do you want your great grandchildren to be in 100 years? Its all the universe or nothing. Which shall it be?  

Chris OKane 2006  


'Everyone thought I was out of my mind'

Buffy creator Joss Whedon tells Gareth McLean about his plan to shake-up Hollywood

Wednesday October 5, 2005
Guardian

Joss Whedon is big on personal responsibility. It was one of the major themes of Buffy the Vampire Slayer - standing up for what you believe in, fighting your demons and accepting that nothing comes for free. It's there again in Serenity, the writer-director-producer's big screen adaptation of Firefly, a western-in-space series that was cancelled after half a season in the US.

Serenity's universe is a dark place. Under the captaincy of Mal Reynolds, a motley crew travel through space eking out a living wherever, and however, they can. While they smuggle, cheat and steal to survive, these are noble thieves, existing under the rule of an apparently benign galactic government which reveals itself as less than lovely. There are no wrinkly-browed aliens to intervene with magical technologies, no polished spaceships or pristine uniforms, no quick fixes in a brutal sky.

"Aliens inevitably distance you from what I really wanted to do," says Whedon. "I wanted to come back down to earth in space, show that no matter how much advanced technology we create, we're still going to be us - flawed, conflicted people with the same problems we've always had. And although that sounds depressing, it's what makes us human. And what happens when you try to do that? Well, there's a clear statement in the film about what happens."

After taking on two fugitives, Reynolds's crew find themselves the focus of the government's attentions, at the centre of a sinister universe-wide conspiracy, and the prey of the diabolical Reavers who will "rape us to death, eat our flesh and sew our skin to their clothes. And if we're very, very lucky, they'll do it in that order."

Serenity might share the dubious honour of being a film born of a cancelled TV show, but Star Trek it ain't. "I love this idea of the future because it's one in which you have to make everything you have," says Whedon. "You make your family, your choices, your ethics. It's a hard life. It's not in any way a passive life. It's pioneering."

The appellation of genius is issued too often, but, as creator of Buffy, Oscar-nominated screenwriter of Toy Story, comic-book scribe, musician and lyricist, Whedon is, by any standard, at the very least brilliant. The third generation of TV writer in his family (his father Tom wrote for Benson and The Golden Girls, his grandfather John for The Dick Van Dyke Show, The Donna Reed Show and Leave It to Beaver), he started his career writing on Roseanne. As well as credits for Toy Story, Alien Resurrection (a script he reportedly said had been ruined by the director) and Titan AE, he also worked on Speed, Waterworld, Twister and X-Men, though how much of his work remains in the finished films is disputed. Apparently, only two of his lines remain in X-Men while much of Speed's dialogue is his. Whedon is familiar with the machinations of Hollywood and was prepared for a slog in getting Serenity made. In fact, it was "unexpectedly easy".

"At first, everyone looked at me like I was out of my mind," he says. "I wanted to make a movie out of a show that had just been cancelled with a cast of unknowns. But then Universal stepped in and said they'd pay the rent."

This ease perhaps has something to do with the much-discussed death of the blockbuster, the failure of the likes of Stealth and The Island to deliver returns on their mega-budgets. Serenity cost $40m to make, which is not an insubstantial sum, but it's a world away from The Island's $120m budget. "We'd like to shake up the Hollywood paradigm of first weekend, big name, get-'em-in-quick, shock-and-awe marketing and go back to the era of making a smaller movie where you believe in the story. There have been some decent summer movies recently but, by and large, they've been pretty soulless. If you're dealing with a smaller budget and focusing on the people instead of what you can afford to do with CGI, it's much more exciting."

Serenity is a compelling story - the one that would have been told had the series not been cancelled - very well done. The rise and rise of DVD will also have persuaded Universal that Serenity was worth a shot. At a time when studios make five times more on home entertainment than on cinema tickets, and theatrical releases increasingly act as tasters for release on DVD for smaller budget films, films such as Serenity are simply a better bet than something involving Michael Bay. Even if it doesn't pay off, you haven't lost $100m. "DVD is changing everything," Whedon nods. "It's scaring a lot of people. I think it's nifty. Fear is good. It's healthy. It keeps you strong."

Speaking of strong, Whedon is in the early stages of writing the script for the upcoming Wonder Woman, due in 2007. He's having, he says, the time of his life. After some unfortunate experiences on other big studio films, he's made sure he and the studio are singing from the same hymn sheet. "I've explained exactly what I thought the movie was, and Warner Brothers agreed. Otherwise, I wouldn't be writing it. I was able to find a lot of what made her tick and they responded to that. There's so much to explore with her."

So, in the grasp of the creator of Buffy, Wonder Woman is in safe hands? It's quite a responsibility, but Whedon's big on that. "Oh, I'm sticking with all the important stuff. The bracelets. The invisible plane. The magic lasso. I will find a way of not making it cheesy."

Returning to the subject of his new film, Whedon explains that although science fiction is often derided it holds a mirror up to reality in a way only genre films can. As Serenity unfolds, it addresses contemporary concerns of deceitful government while its people are distracted by consumerism. The personal becomes political.

"Serenity is about the kind of people who believe they can't take what the government feeds them - and in our country right now, that's important. People get fed an enormous amount of lies and anyone who points that out might be deemed unpatriotic. It seems to be less and less acceptable to care about where information comes from and what our government's doing."

Having said that, Whedon continues, his film isn't partisan. "Everything in America right now has a big line drawn down the middle, and you're either on one side or the other. This movie isn't that. It's not about one government being bad, or more or less government being the right thing. It's about how the machinations of politics affect the little guy."
New company wants Mars colony

All companies set goals, but newly formed 4Frontiers Corp. is eyeing some expansive horizons. The company's mission: to open a small human settlement on Mars within 20 years or so.

CAMBRIDGE, Massachusetts (AP)
Sep 2005

Sure, it may sound far-fetched. And the company's initial plans are a lot more terrestrial than ethereal, like developing a 25,000-square-foot replica of a Mars settlement here on Earth, then charging tourists admission.

But the people behind the venture are quite serious -- as serious as the $25 million they want to raise from investors.

CEO Mark Homnick, a former manager for Intel Corp. who has registered 4Frontiers in Florida, says he has already raised "a couple million" from people he won't name. He hopes for an initial public offering within five years.

That still leaves a lot of questions: Why should people live on Mars? And if it's going to be done, should a private enterprise engage in what would be one of humanity's defining moments?

Besides, what's in it for investors?

Homnick and his co-founders -- a longtime Mars aficionado named Bruce Mackenzie and a 25-year-old Massachusetts Institute of Technology master's student, Joseph Palaia -- are ready with several answers.

First, they contend, humankind needs a new frontier to explore, with all the intellectual and engineering challenges that homesteading Mars would present.

Also, who knows the fate of our humble Earth? Will we meet an early end at the hands of an asteroid, warfare, disease or some other catastrophe?

In that case, we'd sure be glad civilization had been preserved by some colonists on Mars -- and perhaps elsewhere in the galaxy, if all goes well on the Red Planet. That broader vision of space settlement gives 4Frontiers its name: the frontiers being the Earth, the moon, Mars and the asteroids.

"It's the nature of life -- life tries to expand and tries to adapt," Mackenzie says. "If there's a forest fire in one valley, then all of the organisms in the next valley will slowly creep over the ridge and repopulate that valley. Any species that don't do it eventually die out." Going to space, he believes, is as if "all of earth's life, acting together, is trying to get into the next valley. And the only way we can do it is by building rockets."

Mackenzie, a software developer, has devoted much of his energy to a nonprofit group called the Mars Foundation, which aims to advance knowledge about how to colonize the planet. But he decided a private venture like 4Frontiers also would be necessary, to drive things forward.

Although President Bush has called for a manned mission to Mars, Mackenzie believes big bureaucracies might never get the job done right.

"It's better to have lots of groups out there, all trying things," Mackenzie says.

Indeed, space is no longer solely the province of earnest astronauts with crew cuts and government-issued uniforms.

Space tourism is on the verge of becoming big business. Space Adventures Ltd. of Arlington, Virginia, has brokered $20 million trips for the wealthy on Russian rockets and is taking deposits for $100 million fly-bys of the far side of the moon. For a lot less money, you can sign up for a quick blast into zero gravity.

But in comparison, 4Frontiers' ultimate goal of an extended stay on Mars would be off-the-charts extreme.

It would take months to get there. Once there, you couldn't kick off your shoes and dig your toes into the sand. Life would transpire in an enclosed space with pumped-in air (unless Martian settlers could pull off the even more speculative feat of "terraforming" the planet by changing its toxic atmosphere.) Venturing outside would require sealed suits.

To begin, 4Frontiers plans to gather patents and engineering ideas that would enable a small crew to land on Mars with home-building materials and the manufacturing capability to keep adding on.

The hot topics would include ways to miniaturize key industrial processes -- like making plastic or steel -- and methods for exploiting Martian resources, such as the carbon dioxide in the atmosphere, iron in the dirt or the water bound up in Martian ice.

As the company gains expertise, it expects to sell consulting services to aerospace companies or NASA. It envisions getting work designing Mars sets for movies and Mars rides for amusement parks.

Meanwhile, it plans to construct a mock-up of its Mars home and begin selling tickets to it by 2007. Potential sites in Colorado, Florida and New Mexico are being considered.

The company's business plan estimates these varied projects would bring in $34 million in revenue in 2010 -- including $7 million in gate receipts at the tourist site.

Profits before taxes, depreciation and amortization are forecast at $1.4 million as early as next year, and $29.7 million in 2010.

Even if that flies, then what? A $34 million company probably isn't in a great position to begin launching rockets.

Homnick says 4Frontiers would probably "stay incremental" through the early 2010s, perhaps getting involved in robotic surveys of Mars or asteroid mining.

However, projects like that -- and perhaps even settling Mars might require some clarity in space law.

The 1967 Outer Space Treaty declared that the "exploration and use" of outer space and celestial bodies "shall be carried out for the benefit and in the interest of all countries." While that's not exactly the traditional language of private enterprise, some space scholars say it leaves room for commercial projects.

(A 1979 Moon Treaty was more explicit, holding that bodies in the solar system should not become the property of any nation, organization or person. But most countries, including the United States, China and Russia, never ratified it.)

Considering all the possible complications, Mackenzie says 4Frontiers' real success might come simply from getting the public pumped about living on Mars. In turn, that could make Washington eager to fund a settlement.

Even if that doesn't happen, he is sure that people eventually will live on Mars -- and perhaps scores of other places in space.

"It's a question of when," he says. "I really hope we get started before we have an economic decline that delays it. I'd really hate to have something like the Great Depression, or the Dark Ages that lasted several hundred years, delay getting into space."
 


From Giant Leaps to Baby Steps

Imagine if we had been so timid about space in the 1960's.

Eugene F. Kranz
New York Times
3 Aug 2005

Houston - To read and listen to the coverage about the space shuttle, you would think NASA's mission team has taken careless risks with the lives of the seven astronauts who went into space on the Discovery last Tuesday. During the launching, foam fell off the external tank. For the risk-averse, the only acceptable thing to do now is retire the shuttle program immediately and wait for the divine arrival of the next generation of spacecraft. I am disgusted at the lack of courage and common sense this attitude shows.

All progress involves risk. Risk is essential to fuel the economic engine of our nation. And risk is essential to renew American's fundamental spirit of discovery so we remain competitive with the rest of the world.

My take on the current mission is very straightforward. The shuttle is in orbit. To a great extent mission managers have given the spacecraft a clean bill of health. Let us remember that this is a test flight. I consider it a remarkably successful test so far.

The technical response to the Columbia accident led to a significant reduction in the amount of debris striking this shuttle during launching. Mission managers have said that the external tank shed 80 percent less foam this time than on previous launchings. Only in the news media, apparently, is an 80 percent improvement considered a failure. Rather than quit, we must now try to reduce even more the amount of foam that comes off the tank.

The instruments and video equipment developed to assess the launching and monitor debris falling from the tank worked superbly. For the first time, the mission team knows what is happening, when it is happening and the flight conditions under which it occurred. This was a major mission objective, and it is an impressive achievement.

Having spent more than three decades working in the space program, I know that all of the flights of the early days involved some levels of risk. Some of those risks, in hindsight, seem incomprehensible by today's timid standards. If we had quit when we had our first difficulties in Project Mercury, we would have never put John Glenn on the Atlas rocket Friendship 7 in 1961. Two of the previous five Atlas rockets test-fired before Friendship 7 had exploded on liftoff.

On Gemini 9, 10 and 11, all in 1966, we had complications with planned spacewalks that placed the astronauts at risk. Rather than cancel the walks, we faced the risks and solved the problems. These set the stage for Gemini 12 later that year, during which Buzz Aldrin spent more than five hours outside the capsule and confirmed to NASA that spacewalks could be considered an operational capability.

Eventually, this ability enabled astronauts to retrieve satellites and repair and maintain the Hubble space telescope; and during the current mission, spacewalks were used to repair a gyroscope on the International Space Station and will allow the crew to fix some of the damage that occurred during the launching. These are the rewards for the risks we took on those early Gemini flights.

I understand the tragedy inherent in risk-taking; I witnessed the fire aboard Apollo 1 in 1967 that killed three crew members. It filled us with anger at ourselves and with the resolve to make it right. After the fire we didn't quit; we redesigned the Apollo command module. During the Apollo missions that followed, we were never perfect. But we were determined and competent and that made these missions successful.

I see the same combination of anger, resolve and determination in the space shuttle program today. These people are professionals who understand risk, how to reduce it and how to make that which remains acceptable. Most important, the current mission has demonstrated the maturity of the shuttle team that endured the Columbia disaster and had the guts to persevere. This is the most important aspect of the recovery from the Columbia accident, and is a credit to the great team NASA now has in place, headed by its administrator, Michael Griffin.

There are many nations that wish to surpass us in space. Does the "quit now" crowd really believe that abandoning the shuttle and International Space Station is the way to keep America the pre-eminent space-faring nation? Do they really believe that a new spacecraft will come without an engineering challenge or a human toll? The path the naysayers suggest is so out of touch with the American character of perseverance, hard work and discovery that they don't even realize the danger in which they are putting future astronauts - not to mention our nation.

Eugene F. Kranz, author of "Failure Is Not an Option: Mission Control From Mercury to Apollo 13 and Beyond," is a former Apollo flight director.
 
Pushing for the next giant leap

Humans have a "moral imperative" to open up space as a "new frontier", says X-Prize founder Peter Diamandis.

By Jo Twist
BBC News science and technology reporter
17 July 2005

He also believes that within the next decade humans will find ubiquitous life on Mars and, in our lifetime, millions of people will be going into space.

Mr Diamandis addressed last week's Technology, Entertainment and Design (TED) conference in Oxford, held in Europe for the first time.

TED Global brings together scientists, designers and big thinkers to discuss how to make a better future for all.

High ambition

"If you think about space, everything we hold of value on this planet is in infinite supply there," Mr Diamandis explains.

"Earth is a crumb in a supermarket full of resources."

Inspired by the Apollo mission, it has been his ambition since childhood to take people into space, he says.

Mr Diamandis raised cash with help from the Ansari Foundation and others to create the Ansari X-Prize.

The prize rewarded the first non-government funded manned craft to reach the official 100km boundary of space twice in two weeks.

The $10m jackpot was won by aviation pioneer Burt Rutan's Scaled Composites team in 2004.

Its SpaceShipOne craft was the first vehicle to achieve the feat, and a modified version will now form the fleet for Richard Branson's Virgin Galactic space tourist service.

Both Mr Rutan and Mr Diamandis are passionate believers that humanity's future in space should be led by non-governmental missions.

Risk and reward

Only those missions can afford the great risks that are inherent in such early exploration.

"True breakthroughs require risks," thinks Mr Diamandis.

The cost of getting into orbit is the key to human survival, wealth and prosperity
Peter Diamandis
"The X-Prize showed that risk was OK. We should be allowed to take risk, and anyone who says we shouldn't should be put aside," he explains.

Those breakthroughs could happen in space; some could even provide world changing solutions for Earth, he believes.

Such risks, as evidenced by the recent false starts for the space shuttle, are proving increasingly difficult to justify for government-supported organisations, such as Nasa.

English Astronomer Royal, Sir Martin Rees, told the BBC News website that non-government missions were the only real option.

"My feeling is that with every advance in the miniaturisation of robotics, the practical case for sending humans into space is weakened," he said.

"Nasa-type projects are vastly expensive, partly because they are risk averse.

"So I think that any future for manned space exploration should be private sponsorship by people who are prepared to take the risk and cut corners," he argued.

He foresees many more probes doing the exploring for us, as satellite technology advances. This will help us understand our origins.

New frontiers

Indeed, one of the main themes at TED last week was that humanity has barely touched the tip of the iceberg in terms of its own evolution.

That goes for our knowledge of life outside of our "middle world" existence, as biologist Professor Richard Dawkins phrased it at the conference.

"We are young as a species," says Mr Diamandis. In terms of what our future in space would look like, he says: "We cannot conceive it".

"It is like asking the Europeans in the 1400s to think of life today. We will make decisions to change the very fabric of society.

"We may even reinvent society and the human form," he says.

If it sounds reminiscent of Christopher Columbus' colonialist ambitions, Mr Diamandis talks the talk that suggests it is.

"We are on the verge of the greatest exploration the human race has ever known," he says.

Frontiers are among our planets' scarcest resources, according to Mr Diamandis.

At frontiers, new decisions are made. People can rise to their full potential there because they are unhindered by social structure, he argues.

Of course, one motivation for claiming new frontiers and colonising them is power and wealth, which Mr Diamandis says drives the human desire for exploration.

"The cost of getting into orbit is the key to human survival, wealth and prosperity," he says.

The infinite resources that Mr Diamandis talks of include nickel-iron asteroids worth $20 trillion on the open Earth market.

But for now, Mr Diamandis is busy organising other X-Prizes to push humanity into taking risks, pushing scientific, medical, and technological advances.

X-Prizes for energy, genetic, environmental and medical development are all under development.

Geneticist Craig Venter has just joined the X-Prize board for a rapid genome prize.

His motivation here sounds altruistic.

"The most critical tool for solving humanity's challenges is a committed passionate human mind," says Mr Diamandis.
 

The Drive to Discover 

I have a confession to make. I made the movie Titanic because I thought I could talk the studio into letting me dive and film the real ship, 12,500 feet down in the North Atlantic.

By James Cameron
Wired Magazine
Dec 2004


I was an avid wreck diver, and it was the ultimate shipwreck. Making the movie itself was actually secondary in my mind. So when I proposed the movie, I pitched the Titanic dives as a marketing hook - and the studio bought it. I figured, if I got killed, it would be before all the sets were built and the actors hired, so the studio wouldn't be out much. My crew and I built our own deep-ocean 35-mm camera system, designed to withstand 10,000 psi of ambient pressure, and in September 1995, we made 12 dives to the wreck using two Russian Mir submersibles. We brought along Snoop Dog, a remotely operated vehicle we had built, which maneuvered around the wreck, getting footage. The plan was to fake the interior shots later, because it was too dangerous for Snoop to go inside. But on the last dive, my curiosity overcame my judgment and we piloted it down the grand staircase to explore B deck and D deck. I'll never forget the thrill and wonder of discovery, watching the video monitor inside that cramped and freezing submersible more than 2 miles down, as the ROV's lights revealed fully preserved woodwork, gold-plated chandeliers, even a marble fireplace. Some of the Titanic's elegance still remained, hidden deep in the wreck.

I was hooked, infected by the deep-sea-exploration virus. After the success of the movie, I found myself less interested in Hollywood filmmaking and more interested in the challenges of deep-ocean photography and exploration. We returned to the Titanic site in 2001 with our digital 3-D camera system to capture stereo images of the wreck. We also used fiberoptic-spooling bots to survey the ship, giving marine archaeologists their first view ever inside. (No one had bothered to photograph the ship in 1912 because they didn't expect it to sink on its maiden voyage; all those pictures you've seen are actually of the sister ship, the Olympic.) The resulting film, Ghosts of the Abyss, was the first Imax 3-D film to be shot digitally.

Since then we have made four more deep-ocean expeditions, including a trip to explore the wreck of the German battleship Bismarck, 16,000 feet down in the North Atlantic, as well as numerous dives at hydrothermal vent sites along the Mid-Atlantic Ridge and the East Pacific Rise. In the last three years, I've spent seven months at sea and gone on 41 deep-submersible dives. I have a wife and four children. Some might question the risks, but I've made my peace with it.

Whenever explorers go into hostile realms, whether in space or in the sea, we live or die by our machines. A big part of the appeal is the engineering challenge - pitting the intelligence and creativity of the team against the implacable elements. There is no more quintessentially human act than to use our consciousness to adapt ourselves to environments in which we could not otherwise survive. It's what we do better than any other species on Earth. Still, there is always that moment when the hatch is closing and a microsecond's thought says, "Maybe this is the last time I'll see daylight." I always say the same thing to those gathered outside as I enter the sub: "See you in the sunshine." It has become a lucky touchstone, a little prayer that we will return safely from the eternal darkness. It's important to acknowledge that the ocean is capricious, that it can give the most remarkable gifts, but it can also take away without warning.

These dives have taught me one overwhelming truth: There is so much we don't know. On every dive I see something I never could have imagined. A diaphanous jellyfish 7 feet across. A pink octopus with wings on its head. Blind shrimp swarming inches from water hot enough to melt lead. Once in a while I see and film something no one else has ever seen, and those are moments of profound satisfaction. Nothing the artifice of Hollywood has to offer can compete with the thrill of something this exciting and 100 percent real.

There are still untold mysteries down there in the dark, enough to fill a hundred years of exploration. Certainly enough to intrigue and compel me for the rest of my life. But of course the truly infinite frontier is in the other direction.

Space is a vacuum. There is, by definition, nothing there. When we talk about exploring space, we really mean exploring the objects careening around in space - planets, moons, the occasional comet. So space is a hurdle, an ocean that must be crossed to reach a destination. Unfortunately, for three-quarters of the space age it has been treated as a destination in and of itself.

The last time humans crossed space to a destination was the Apollo 17 mission in 1972. In the 32 years since, no man has seen, with his own eyes, Earth as that beautiful, solitary blue sphere, and - reality check - no woman has ever seen it at all. We've been only to low Earth orbit since 1972, and from that altitude of 220 miles, looking at the 7,900-mile-diameter Earth is like peering at a basketball with your cheek pressed against it. Yes, you'll see curvature, but you're not seeing the whole thing. We've spent 32 years "exploring space" in low Earth orbit. Exploring nothing. To stay in orbit you have to go 17,000 mph, or Mach 25. So we've spent three decades going nowhere fast. 

It's taken people a long time to wake up to this fact, but we finally have. Now Exploration with a capital E is in the air again, in what will hopefully become some kind of renaissance. Eleven billion hits to NASA's Web site during the Spirit and Opportunity rovers' exploration of Mars is an astounding groundswell of support. NASA is still blinking in surprise, trying to figure out why people love the rovers yet care less about the construction of the International Space Station than a new interchange outside Cleveland. It is only now sinking in that one is exploration and the other is, well construction. 

As we mourned the Columbia astronauts, they were frequently referred to in media as "explorers." The real tragedy of that accident is that they were not explorers. They were boldly going where hundreds had gone before. They were researchers working in a lab that happened to be in orbit. Did their research have value? Of course, but only in the sense that all science has value. Was it worth the price they paid? Not by a light-year. Did they die in vain? Only if we don't learn and take to heart a lesson - not that foam can peel off the external tank and damage the reinforced carbon leading edge of the wing, or even that NASA culture needs to change. But that even after four decades of technical progress, travel to and from space is inherently dangerous, so only go there for a good reason.

In my mind, there is only one reason good enough, and that's exploration. That means going somewhere, not in circles. But actually going somewhere, like the moon or Mars, is considered too risky and expensive. Those high school touchdowns scored by Neil and Buzz and the others are trophies that have been gathering dust, but we still fantasize that we are the same team we were then. The reality is that we have become risk averse, willing to coast on the momentum of past accomplishments. If we study the problem, build tools and systems, and so on for the next 50 years, we can jolly ourselves along that we are still those clever Americans who put a man on the moon back when was that again?

If the next step is to send humans to Mars, then we must reexamine our culture of averting risk and assigning blame. We don't need any miracle breakthroughs in technology. The techniques are well understood. Sure, it takes money, but distributed over time it doesn't require any more than we're spending now. What is lacking is the will, the mandate, and the sense of purpose.

Something interesting is happening right now as you're reading this. NASA is scrambling, under presidential orders, to prepare for a renewed vision of human exploration beyond Earth. They've generated a plan, and it's a good one. I've sat on the NASA Advisory Council for the past 18 months, which is surely the most interesting period since the Apollo days. NASA administrator Sean O'Keefe has fundamentally reorganized the agency. NASA is figuring out post-shuttle solutions to get people into orbit, how to do the heavy lifting to get big payloads (like interplanetary vehicles) up there, and all the other critical tasks to create human exploration space-systems architecture.

The public understandably asks how this will be paid for. The answer comes with some good news and some bad. The bad news is that space shuttle operations and space station construction and operations (in other words, current human spaceflight) is sucking up about $8 billion of NASA's $15 billion annual budget. The good news is that when the shuttle is retired (2010) and the space station completes its mission (2014), $8 billion a year will be freed up without adding a dime to the NASA budget. Over time, one funding wedge tapers, and the other widens. From 2014 to 2024, you've got a cool $80 bil to send folks to Mars.

The problem is that government projects are subject to bloat. Fortunately, the other recent change is that the private sector has started to really flex its muscle in space. Burt Rutan's flights to win the Ansari X Prize are a milestone in human spaceflight. Does Rutan's technology work for real exploration beyond Earth's orbit? Not directly. But it demonstrates that small companies like Rutan's Scaled Composites, Elon Musk's SpaceX, and Bigelow Aerospace can have a place at the table of human spaceflight in the future. One of the strongest recommendations of the Aldridge Commission, the presidential panel convened to review NASA's exploration plan, is that private enterprise should be made an integral part of the solution.

Everybody talks about the cost of going to space. But what about the cost of not going? Where would our economy be if the space race of the '60s had not happened? What if we hadn't been forced to come up with more-powerful computing to calculate trajectories on the fly while guys were on the far side of the moon in titanium cans? Where will we be in 20 years if we don't do something that captures the public imagination and inspires kids to give a damn about science and engineering again? What if we become Rome, blinded by the image of our own superiority while other younger, more vigorous cultures supplant us?

You may be asking: Shouldn't we solve our problems here on Earth before we go into space? There will never be a time when all people are satisfied, when all wrongs are addressed. We live better, more luxuriously, and longer now than at any other time in history. Cook, da Gama, and Magellan left behind shores wracked by death, disease, and social injustice - but they went, and their societies benefited. Our problems must be solved, but not at the expense of exploration.

Exploration is not a luxury. It defines us as a civilization. It directly or indirectly benefits every member of society. It yields an inspirational dividend whose impact on our self-image, confidence, and economic and geopolitical stature is immeasurable.

So, as the ones paying the tax bills, we have to shout out that we want this! Our shout has to be loud enough that in the mind of the politician, that fear-based processing algorithm, the fear of going becomes less than the fear of not going.

What are we waiting for? Let's go.



Man vs. Machine

Some truths take a lifetime to learn; some you know when you're 5 years old. At that age, I knew that human beings were meant to explore space.

By Andrew Chaikin
Wired Magazine
Dec 2004


It was 1961, and the space age had barely begun. I didn't know about President Kennedy's challenge to send people to the moon within the decade, but I knew that humans would go there - after all, my picture books almost always included astronauts exploring alien vistas.

Today, decades after the final Apollo mission, we still haven't sent a human back to the moon - or beyond it. We explore the solar system with robots, like the Spirit and Opportunity rovers, which have been roaming the deserts of Mars for close to a year. These rovers are magnificent examples of human ingenuity. They drill into rocks to analyze chemical composition. Their microscopic imagers zero in on tiny details, while a pair of cameras capture widescreen, Imax-quality panoramas. The rovers can even dig trenches to reveal what's beneath the surface.

It's tempting to think that wonderful machines like these could replace human explorers. But Spirit and Opportunity can do only what they're told. They can detect only what they have been designed to detect. The data they can collect in a month on Mars could be gathered in a matter of hours by a lone human field geologist. Even the mission's scientists and engineers agree that to realize the full potential of scientific discovery on other planets, we'll need to put human minds and hands to work. The question is not whether to send people, but when.

Of course, the costs and risks of sending humans to the moon, Mars, or nearby asteroids will outweigh the benefits for at least the next decade. Until that balance is tilted by the development of new spacecraft and protective measures that reduce danger and expense, we'll have to live by the watchword of engineer Gentry Lee, a 30-year veteran of NASA's Mars missions: "Never send a human to do a robot's job."

But the balance will tilt, and when it does, humans will follow in the footsteps of our robotic creations. That doesn't mean machines will act only as a kind of advance team for people; even after astronauts have begun exploring alien worlds, they will need robotic assistants to handle repetitive or especially dangerous tasks. But only human explorers can raise the pace of discovery a quantum leap. And only they will tell us what it is like to be there.

This is the precious gift we got from the Apollo astronauts who visited the moon between 1968 and 1972. One recalled his amazement at exploring the lunar landscape, a wilderness that was more ancient than he could comprehend and more beautiful than he had imagined. Another described orbiting the moon alone, in darkness, gazing out at a sky filled with unblinking stars, and wondering who might be staring back. All spoke of their awe at seeing Earth, lovely and distant, rising beyond the moon's lifeless horizon - and of the sobering realization of how far from home they really were.

These stories, postcards from the edge of human experience, are just a taste of what we will gain when humans once again journey to other worlds. The future of space exploration is for robots and people. But don't take my word for it. Ask a 5-year-old - the one inside you, who longs to be an explorer.

Andrew Chaikin is the author of A Man on the Moon, the basis for the HBO miniseries, From the Earth to the Moon.
 

Conversation With John Young
Ex-astronaut says moon's resources may help Earth

By PATTY REINERT
17 Dec 2004
Houston Chronicle Washington Bureau

Associated Press File
Astronaut John Young, who was part of the Apollo 16 mission to the moon in April 1972, salutes the U.S. flag after it was planted on the lunar surface.
WASHINGTON - In more than four decades at NASA, astronaut John Young has flown in space six times seven if you count his lunar liftoff. He smuggled a corned beef sandwich aboard a Gemini capsule, walked the moon during Apollo and commanded the maiden voyage of the space shuttle Columbia.

In an interview with the Houston Chronicle two weeks before his retirement from the space agency, Young, 74, said he'll spend his time advocating for a return to the lunar surface and a human mission to Mars, convinced that life on Earth could depend on it.


Q: What were you thinking about and feeling when you first approached the moon on Apollo 10, and when you landed there to explore on Apollo 16?

A: I was flying the spaceship and we were breaking into lunar orbit, and we broke out over the highlands on the back side of the moon. It was completely dark ... so we were in the dark and then we broke out into sunlight and saw the back side of the moon. The impressive thing about the back side of the moon is how many darn craters it has. If the back side of the moon was facing us, I think human beings would be far more adaptive, far more educated, about (asteroid or comet) impacts on planet Earth. We're going to have a few of those before it's over with. ...

But one-sixth gravity on the surface of the moon is just delightful. It's not like being in zero gravity, you know. You can drop a pencil in zero gravity and look for it for three days. In one-sixth gravity, you just look down and there it is.


Q: Why should humans go back to the moon?

A: The moon has a lot of resources that we'll learn how to use in this century and that will be great. ... The technologies we need to live and work on the moon will save us right here on this planet.

Bad things are inevitably going to happen to us, like comet or asteroid impacts or super volcanoes. Flying in space is risky business, but just staying on this planet is risky business too.

The statistical risk of humans getting wiped out in the next 100 years due to a super volcano or asteroid or comet impact is 1 in 455. How does that relate? You're 10 times more likely to get wiped out by a civilization-ending event in the next 100 years than you are getting killed in a commercial airline crash.

The most dangerous thing we do in Houston, of course, is drive our automobiles to work every day, so you know how dangerous that is and how many people get killed doing that. But wiping out civilization. ...

It's not the point that we should move (to another planet). It's the point that the technologies that we need to live and work in other places in the solar system will help us survive on Earth when these bad things happen.


Q: You commanded the first flight of space shuttle Columbia in 1981, and you've also been a strong advocate for upgrading safety at NASA. How do you think the agency is doing with that, and how long do you think the space shuttle should be used?

A: You're going to need the shuttle to fly 28 missions in 10 years to build the space station. I think the only way to do that is to keep at the shuttle and look at every problem they have, and they're doing that right now. I wish we were flying right this minute.


Q: With Sean O'Keefe retiring, what do you think NASA needs in its next administrator?

A: I think they need to be looking at somebody who understands the business. It's a tough business, you know, doing things for science and technology and advancing the future and making real progress on the long term. It's tough to get people to want to do that.

The goal of going back to the moon and on to Mars even though it would develop the technologies that over the long haul would save people on this planet nobody wants to invest in it. You'd think people would be worried about their children and grandchildren and their children and grandchildren, but we really don't worry.

We now have the ability to develop the technology to allow us to control our own destiny, and I think we should do that. I think it would be very important in the long haul to try to keep civilization going. It's a pretty important bunch, a great gang we all belong to the human race ...


Q: What are your retirement plans?

A: I plan to keep advocating for developing the technologies we need to get off the planet and keep the shuttle going and build the space station and do all the things we need to do to make progress in science and technology. Over the long haul, doing that will certainly make things better for people all over the Earth.

You know, sooner or later, the Chinese and the Indians are going to want two cars in every garage, just the way we do. If they put fossil fuel cars in every garage, there isn't enough oil on the planet to do that.

I think going to alternative sources of energy is the key to the future of civilization on this planet, because we're gonna run out. ... Nobody's worried about that, but we should be very worried about that.

I think it's really important to get folks educated about these problems ... Earth's geologic history is pretty clear: It says, quite frankly, that single-planet species don't last. Right now we're a single-planet species. We need to fix that.
 
Stocks' Final Frontier

Humans reached for the heavens once again in 2004, from the president's push for Mars to SpaceShipOne's daring suborbital adventures to Sir Richard Branson's Virgin Galactic. Tim Beyers wonders if there are profits for investors on Earth in this new space race.

By Tim Beyers
January 10, 2005

We're kicking off the first five weeks of 2005 by profiling five promising innovations on the verge of exploding into the mainstream in the New Year. Last week, we covered radio frequency identification tags, otherwise known as RFID. Today, we're tackling the commercialization of space travel. You might want to fasten your seat harness.

Star Trek hit the airwaves in 1965, but 2004 will go down as the year the real star trek began.

Nearly 40 years after that seminal TV series, and more than 35 years after humans landed on the moon, we've reached the dawn of a new space race. But instead of America battling the Soviets, it is Lockheed (NYSE: LMT) vs. Boeing (NYSE: BA), SpaceDev vs. Orbital Sciences, Virgin vs.... well, every other embryonic space tourism outfit.

And the stakes in this battle couldn't be higher: The winners will earn market supremacy in the final frontier. Talk about pricing power. More importantly, imagine the investment potential.

Typically, it takes decades for developments in space to have a real impact at sea level. Last year's full calendar of intergalactic events changed that. From President Bush lighting a fire under NASA to get to Mars, to SpaceShipOne earning the $10 million Ansari X prize for suborbital space flight, to Sir Richard Branson's new Virgin Galactic venture, the heavens suddenly became downright hip. And it's continued into 2005. Witness the cover of the most recent issue of Wired magazine for which Branson donned astronaut gear.

And though it doesn't feature Wired's textured stock cover and various other stylish colored bubbles, we at The Motley Fool have a remarkable new publication called Rule Breakers. This service, which I'll describe for you in more detail in a minute, is dedicated to ferreting out tomorrow's great growth stocks early in their disruptive stage.


What Is a Disruptive Innovation?
As the name implies, it's a breakthrough that rattles the walls of the conventional, technological advances, from the automobile to the microwave oven, that ultimately reshape our lives.

Being a certifiable science fiction geek, I get pretty excited by all these developments, but the investor in me wonders if this is all hype. Can those of us here on Earth really make money from humanity's newfound passion for the heavens?

In a word, yes. There are dozens of potential markets created by commercializing space flight, including the following two that I think are most promising.


Space tourism
Though SpaceShipOne's historic flights captured the headlines, it was the Feds who were responsible for potentially jumpstarting suborbital space tourism. The Commercial Space Launch Amendments Act (even less romantically known as H.R. 5382) ultimately allows average Americans to hitch a ride on a rocket at their own risk. The president signed the bill into law two days before Christmas.

Soon after, interest in the 70-mile-high club began to run high among celebrities. For example, William Shatner of Star Trek fame, and Sigourney Weaver, star of the Alien films, both said they'd enjoy traversing the final frontier. But what about average Janes and Joes? Virgin thinks they'll sign up in droves. In fact, a spokesman quoted in the Wired story says more than 12,000 people have registered at Virgin Galactic's website, each a potential future ticket holder. Says Virgin spokesman Will Whitehorn, "People are throwing checks at us." At $200,000 per ride, that's potentially $2.4 billion in sales.

But space tourism has been hyped before. During Christmas of 1968, Pan Am chief Juan Trippe started taking reservations for trips to the moon. Some 90,000 people signed up. What's different this time around? For one, we're not talking about a trip to the moon. A suborbital trip not even 90 miles above the Earth is a breeze compared to a lunar expedition. Second, the cost of spaceflight has dropped considerably, in no small part due to the relatively low cost of computing equipment. And finally, space travel is safer now. Consider SpaceDev, which created a rocket engine that literally burned rubber to light SpaceShipOne's candle. That's far safer than the combustible components used to create classic rocket fuel.

So, how can the common investor get in on space tourism? Right now, SpaceDev is among the very few public companies in this mix, but there are plenty of private companies worth watching. Among them: the LiftPort Group, which is constructing a space elevator; Space Adventures, which has been dealing in space tourism since 1998; XCOR, which is competing with SpaceDev to create suborbital space engines; and the Zero Gravity Company, which offers weightless flights on a specially modified Boeing 727.


Galactic hitchhiking
Cargo is a huge industry -- just ask FedEx (NYSE: FDX) and UPS (NYSE: UPS). Those two generated more than $60 billion in sales over the past 12 months. But that's the tip of the proverbial iceberg when you think about the entire market, which includes airline cargo, private couriers, trucking, shipping, and so on. Especially now with the continued rise of e-commerce, the industry seems to get larger every day.

Don't expect growth to slow anytime soon, especially now that more payloads are headed for the stars. Consider Space Services, which arranges orbital funerals. Next month, more than 100 of our dead from around the globe will lift off from SpaceX's Falcon I rocket, which is designed to reach orbit more affordably than the classic white and black behemoths of old. Combine that with new micro-satellites that will be easier to haul and you've got a burgeoning industry ready to dot outer space with more electronics than you can find at your local Best Buy. That's good news for companies that already do part of their business in space, such as Sirius (Nasdaq: SIRI) and XM Satellite Radio (Nasdaq: XMSR).

Where are the investing opportunities in space cargo? SpaceDev is helping construct micro-satellites, as are the big defense contractors. Other big players such as SpaceX and Space Services remain private, but both of them are absolutely worth watching.


Beam me up
That the Feds are asking the private sector to invest in space is good for everyone, especially investors. But it's also worth noting that NASA's mission to get back to the moon in 10 years and Mars afterward will require it to fund hundreds of innovations, many of which will be created in private labs. Fortunately, the space agency knows this and has unveiled Centennial Challenges. Modeled after the Ansari X prize that SpaceShipOne took home, the first awards will be modest, but could grow over time to as much as $50 million for far-flung adventures such as commercial moon shots.

No doubt, the combination of federal and private investment should grow the commercial space market dramatically over the next five years. Though many of the companies that will participate in this revolution remain private, not a few are public today, from ghoulish trickster Xybernaut to mega-contractor Ball (NYSE: BLL). And many more likely will come public soon.

David Gardner described these opportunities best when he said, "The earth can shake when Rule Breakers are born on our public markets. They bring a disruptive technology, diabolically clever and effective marketing, or a totally new business model to this little backwater planet of ours. They rattle our capitalistic foundations. And in so doing, they create serious profits for the opportunistic investors who find them early on."

It's our job to keep our eyes peeled for these kinds of opportunities. We take a great deal of pride in finding worthwhile stocks, and making strategic bets where we may. In that sense, this revolution is no different than any other, and we can all profit together. If you choose to join us before Jan. 31, take 50% off. Now, would you mind beaming me up?


Motley Fool contributor Tim Beyers is a confessed Trekkie, and he got the Star Wars DVD collection for Christmas. He wishes he owned some of the stocks in this story but, alas, he doesn't. Fortunately, you don't need a telescope to see what stocks Tim owns. You can check his portfolio here, in his Fool profile. The Motley Fool, which has a disclosure policy, is investors writing for investors.

An Opposing Viewpoint (with my reply)

Hi
 
Great, I have to agree with everything you say.
 
Yet you haven't addressed the inspirational value of such a mission. Unless we humans begin to dream collectively in a big way, we're going to snuff ourselves out on this tiny claustrophobic planet.
  
Mario

----------------------------

To: Mario Di Maggio
Subject: How To M
ars ?

Hello,

The cost of one manned mission to Mars ($400.00 B ) is equivalent to a thousand robotic missions.( $0.40 B) We could put dozens of scientific satellites in orbit around not only all our solar system's planets but also all their major moons. In addition we could send dozens of landers to all latitudes of all planets and their major moons. It doesn't stop there. We could visit comets and asteroids and even send spacecraft out of our solar system. We could virtually touch every corner of our solar system and for decades. The scientific payoff and discoveries dwarfs the alternative of a single mission to a single location of a single planet for just a few months.

Supporters of manned spaceflight like to argue that the astronaut is more effective than a robot. Well even if this was true the astronaut would need to be not twice as effect or ten times or one hundred times but rather a thousand times as effective to just get the same value as the robot. Lets concede that the astronaut is twice as effective as the robot. That makes the robot a better choice by a factor of five hundred times. Would the Mars pancam image be any better taken my an astronaut ?

The argument for the astronauts also claims that a human is needed in the loop. That argument misses the point that with robots humans are in the loop. Just look at JPL. They have hundreds of the worlds best researchers. They are directly in the loop orchestrating the rovers activities. This is called telepresence. Those researches are virtually on Mars. Also note how JPL claims the rover cameras have 20/20 vision. This telepresence technology is also on trial in the operating rooms of hospitals. Doctors are performing surgery telerobotically from up to thousands of miles away from the patients. The plain fact is that people are in the loop big time with the robots.

Now remember, I concede that the astronauts would be more effect than the robots but the problem is that they would be marginally more effective for a
disproportionate cost to the tune of five hundred times less scientific returns.

The manned mission supporters realize this lack of value so they cite the spin off technologies that benefit mankind. This is a very hollow argument. If you really value, for instance, the medical devices that emerge then it is silly to not pursue them in a direct targeted way rather than spending all your money visiting the moon and hoping that this will trickle down to an improved pace maker. Furthermore much if not all of the spin of technologies will inevitablly emerge on their own good timetable.

Please, lets touch and visit every corner of our solar system and for decades rather than a single mission to a single location of a single planet for a single moment in time.

Sincerely D. D.
 

Brief report-back on the meeting I attended in London on Friday 10th December 2004: The Scientific Case for Human Space Exploration

Hosted by the Royal Astronomical Society and held in the main lecture room of the Linnean Society (where Darwin and Wallace's thoughts on natural selection were first presented in 1856). 

Contacts I made:

As regards the Ask the Scientist Future of Space exhibits:

          Dr Kevin Fong (Lecturer in Physiology and Director of the Centre for Aviation, Space and Extreme Environment Medicine, UCL). Dr Fong, one of the UKs leading 'exobiologists', is difficult to pin down, yet says he would be delighted to help us with our Future of Space exhibition

          Dr Charles Cockell (British Antarctic Survey). Unfortunately I failed to corner him, yet he is such an enthusiastic and eloquent exobiologist Im confident he will be very willing to assist us. The same would be true for Dr Ian Crawford (Research School for Earth Sciences, Birbeck and UCL), who together with Dr Cockell organised this meeting

          Steve Eckersley (Senior Mission Systems Engineer, EADS [Earth Observation, Navigation & Science] Astrium Ltd). Steves group has just completed a comprehensive study for ESAs Aurora programme on the best ways to minimise the effects of harmful radiation. He would be happy to help us where he can.

As regards the Mars Spacesuit exhibit:

          Mr Bernhard Hufenbach (ESA Directorate for Human Spaceflight, Microgravity Research and Exploration). I asked Mr Hufenbach about acquiring a real or mock-up futuristic spacesuit being developed by ESA (we were keen to use ESA over NASA). As far as he knew though, there were no finished products available, yet he would pass my details on to someone who would know for sure. 

Other contacts:

          Dr Robin Catchpole - updated him on my new position, and he says he would love to deliver talks and evening lectures in our planetarium in the future

          Anita Heward - met Anita for the first time. British Festival of Space director.

          Rodney Buckland - chatted to him for a long time, founder of the European Space School

Heather Couper & Nigel Henbest - touched base and updated them
 

The highlight of the meeting for me was to see both the NASA Chief Scientist (Dr Jim Garvin) and ESA Chief Scientist (Dr Bernard Foing) on the same programme!  

Interesting information included:

          The Space Shuttle will only be retired after the ISS is finished, as all ISS components have been built to fit the Shuttle cargo bay

          Speakers unanimously agreed that the debate over human vs. robotic exploration is outdated and unfounded. The two will happen together, maximising on robotic exploration where we can, because work man-hours in Space are expensive. So the UK politicians and members of the scientific community still clinging to this theological (due to its level of irrationality, as one speaker put it) argument had better wake up or the UK will miss the boat

          Although human Space exploration is very expensive, it is important to remember that the money does not go into Space. It stays on Earth and circulates through the economy.

          Extremely comprehensive and thorough studies described by Jim Garvin and others show that human exploration costs LESS per science discovery/advance than does robotic exploration

          The reasons Moon bases feature in both the NASA and ESA plans to go to Mars are: (a) the need to learn how to live and explore Space in our own backyard first (b) tremendous scientific benefits of studying the Moon carefully (ie which contains true ancient Earth samples) (c) the absolute necessity of learning how to manufacture materials on other worlds

          Dr Cockell explained we are NOT going to Mars to search for life (as it would lead to disappointment if we didnt find any, especially amongst the public). We are going to Mars to do what weve always done - to EXPLORE. If we find life, that will be significant. If we dont find life, it will also be significant. Thats how science works

          He also described the Christmas Present Effect - a wonderful analogy explaining how you could never build a robot to find the perfect Christmas present. To find such a gift requires YOU to be there to see whats available, to draw on your lifetimes accumulated knowledge, and then to bring widely disparate data together into a coherent picture. A robot could never explore a planet like a human geologist, as it would only discover the things we have asked it to look for. Dr Cockell recently went shopping for paper clips and discovered the absolutely perfect gift for his sister: a Cambridge edition of Monopoly - which of course he hadnt known existed up till then

          Impact craters are good places to look for life because shocked rock is porous, providing a habitat for microbes

          It is unlikely we will encounter alien microbes which could infect humans and pose a hazard to life on Earth. From what we know, pathogens and diseases on Earth are highly co-evolved with their hosts, and cross-species infections are very rare
 

Later that evening a larger short meeting was held in the Royal Geological Society lecture hall, where Jim Garvin updated us on the very, very latest from the Mars Exploration Rovers (ie. information received that day). He also explained that:

          The Rovers were designed to operate for 30 days. They have now been operating faultlessly for over 330 days! Huge amounts of data have been received, more than anyone at JPL could ever have dreamed or wished for. This is an incredibly successful mission that has done wonders for NASAs image and credibility, and has been an absolute boon for planetary science

          Yet Jim Garvin and his team concede that ALL the information that has been collected so far by the robotic Rovers could have been gathered in a few days by a single human geologist. Additionally, the interpretation of the data and hypotheses formulated to date could all have happened in the mind of that human geologist as s/he was working in the field

          Although the Rover instruments were not designed to look for signs of life, NASA can confirm that so far no carbonates have been found (ie. the instruments can detect levels as low as 10% by weight). Yet surprisingly high levels of sulphur have been found, coating almost all the rocks studied so far. 

Conclusion 

I thoroughly enjoyed this meeting and look forward to attending many more. From Thinktanks standpoint its a great way to meet useful astronomy and Space science contacts, and for this community to become aware of our planetarium and exhibits. From a personal perspective, Im really glad to finally be living so close to centres where such significant events take place! 

Mario Di Maggio
13 December 2004
 


Sagan's rationale for human spaceflight

by Michael Huang
Monday, November 8, 2004

Sagan, among others, has argued that spaceflight is required to ensure the future of humanity.

Good ideas are often forgotten, but they do not die. They are discovered through reading, or created independently again. The recurring debate on whether humans should be in space omits such an idea. The relationship between human spaceflight and the survival of the human species was explained by the spaceflight pioneers Konstantin Tsiolkovsky and Robert Goddard, and has since been expressed by Stephen Hawking, Carl Sagan, and many others. Sagan's thoughts are of particular interest, since he devoted his career to space science and the search for extraterrestrial life, not human spaceflight.

Carl Sagan was initially a critic of astronautics. Like many scientists, he believed astronauts diverted funds from "real science", missions with robots and scientific instruments. "Guys in a tin can in low Earth orbit are where the excitement isn't," he once said. One of the reasons for the Cosmos television series and book was to inspire an excitement in scientific discovery equal to the excitement of the first human missions. The worldwide success of Cosmos helped set the stage for the enduring popularity of today's space science missions.

In 1994, the long-awaited sequel to Cosmos was published. To the surprise of many, this new book was more about humans than science. Pale Blue Dot: A Vision of the Human Future in Space found a rationale that not only justified human spaceflight, but raised it to the highest importance.

... every surviving civilization is obliged to become spacefaring--not because of exploratory or romantic zeal, but for the most practical reason imaginable: staying alive.

It seems too simple to be true. The purpose of life in space is to survive. But this is true of all life, whether it is in space or on Earth. Every other purpose of life, even happiness, must defer to existence.

These are the missing practical arguments: safeguarding the Earth from otherwise inevitable catastrophic impacts and hedging our bets on the many other threats, known and unknown, to the environment that sustains us.

In medieval times, some people kept a human skull in their home to remind themselves of mortality, and to view their priorities against the big picture of life and death. A modern equivalent is the dinosaur fossil. The fossilized remains of a once great and dominant species reminds the human species of our eventual choice: survival or extinction, or as Sagan put it, "