Friday, December 25, 2009

NASA scientists have produced the most compelling evidence yet that bacterial life exists on Mars.






It showed that microscopic worm-like structures found in a Martian meteorite that hit the Earth 13,000 years ago are almost certainly fossilized bacteria. The so-called bio-morphs are embedded beneath the surface layers of the rock, suggesting that they were already present when the meteorite arrived, rather than being the result of subsequent contamination by Earthly bacteria.

"This is very strong evidence of life on Mars," said David Mackay, a senior scientist at the NASA Johnson Space Center, who was part of the team of scientists that originally investigated the meteorite when it was discovered in 1984.


In a 1996 study of the sample, Dr Mackay and others argued that the microfossils were evidence of life, but sceptics dismissed the claims, saying that similar-shaped structures might not be biological. The new analyses, the product of high resolution electron microscopy, make a strong case for the Allan Hills 84001 Meteorite having carried Martian life to Earth. The microscopes were focused on tiny magnetite crystals present in the surface layers of the meteorite, which have the form of simple bacteria. Some argued that these could be the result of a carbonate breaking down in the heat of the impact.

The new analyses show that this is very unlikely to have resulted in the kinds of structures seen in the rock. Close examination suggested that about 25 percent of the crystal structures were chemically consistent with being formed from bacteria.

"We feel vindicated. We’ve shown the alternate explanation is absolutely incorrect, leading us back to our original position that these structures are formed by bacteria on Mars," Dr Mackay said.

Dennis Bazylinski, an astrobiologist from the University of Nevada who peer-reviewed the findings, said: "Until now I was on the fence but this paper has really thrown out the non-biological explanation." However, he added that the study was not a "smoking gun" for life on Mars. "One meteorite is never going to answer such a complex question," he said.

=================================================================

Allan Hills 84001 (commonly abbreviated ALH 84001[1]) is a meteorite that was found in Allan Hills, Antarctica on December 27, 1984 by a team of US meteorite hunters from the ANSMET project. Like other members of the group of SNCs (shergottite, nakhlite, chassignite), ALH 84001 is thought to be from Mars. On discovery, its mass was 1.93 kg. It made its way into headlines worldwide in 1996 when scientists announced that it might contain evidence for microscopic fossils of Martian bacteria.



This rock is theorized to be one of the oldest pieces of the solar system, proposed to have crystallized from molten rock 4.5 billion years ago. Based on hypotheses surrounding attempts to identify where extraterrestrial rocks come from, it is supposed to have originated on Mars and is related to other Martian meteorites.

In September 2005, Vicky Hamilton of the University of Hawaii at Manoa presented an analysis of the origin of ALH 84001 using data from the Mars Global Surveyor and Mars Odyssey spacecraft orbiting Mars. According to the analysis, Eos Chasma in the Valles Marineris canyon appears to be the source of the meteorite.[2] The analysis was not conclusive, in part because it was limited to parts of Mars not obscured by dust.

The theory holds that ALH 84001 was shocked and broken by one or more meteorite impacts on the surface of Mars some 3.9 to 4.0 billion years ago, but remained on the planet. It was later blasted off from the surface in a separate impact about 15 million years ago and impacted Earth roughly 13,000 years ago. These dates were established by a variety of radiometric dating techniques, including samarium-neodymium (Sm-Nd), rubidium-strontium (Rb-Sr), potassium-argon (K-Ar), and carbon-14.[3][4]



It is hypothesized that ALH 84001 originated from a time period during which water may have existed on Mars.[5] Other meteorites that have potential biological markings have generated less interest because they do not originate from a "wet" Mars. ALH 84001 is the only meteorite collected from such a time period.[5]

The announcement of possible extraterrestrial life caused considerable controversy at the time and opened up interest in Martian exploration. When the discovery was announced, many immediately conjectured that the fossils were the first true evidence of extraterrestrial life—making headlines around the world, and even prompting U.S. President Bill Clinton to make a formal televised announcement to mark the event.[8]
Why should humans go to Mars?


by Frank Stratford

Why should humans go to Mars? Many reasons for and against have been cited over the years, and many still struggle to see the relevance of this priority. It seems so far out, so detached from life on Earth, and in many ways it is. Mars is physically hundreds of millions of kilometers away. It is colder than the coldest environment on Earth and it has an atmosphere—or lack thereof—that would kill you within thirty seconds or do in a most unpleasant fashion. Compared to terrestrial destinations it loses hands down. However, we need to look at Mars in a different context.

But in the end, why are we even considering such a journey? In a word: life.

We don’t yet fully understand all the effects of microgravity but we do know that untreated or lacking countermeasures it can have serious health effects. We don’t know how much gravity is needed to avoid those problems: it’s possible the Moon’s gravity, one-sixth that of Earth, may be sufficient, but certainly Martian gravity, at one-third of Earth’s, should be no worse and may be much better. Mars also has readily available resources, including the most important: water, in relatively abundant amounts, compared to the Moon. Mars also has a roughly 24-hour day night cycle which is crucial for plant development.

But in the end, why are we even considering such a journey? In a word: life. We want to go there to see if we can find evidence of life, a second genesis, and if we don’t find it, we want to establish new life on Mars—our own. Some say that the problems of Earth should be dealt with first, that we are too immature as a species and should wait a while until we “grow up”, but here is the thing: for the first time in history a species on Earth has the knowledge and technology to ensure its own survival by seeding life on new worlds. To ignore this opportunity for some philosophical nirvana to come first could be considered as irresponsible as our environmental abuses also. If there is a planetary crisis, such as the asteroid impact 65 million years ago that wiped out the dinosaurs, and we do nothing, then we will have lost it all.

This is the broad-brush view of why we need to go to Mars, but on a more personal level, what drives people to want to go to such places, so far away, so hostile to life? For many enthusiasts it is an escape, a chance for a new start and the challenge of a lifetime. The reasons for going will be different depending on whom you talk to. They are the same reasons people on Earth moved to hostile and far away environments here.

We need to “sharpen up”, so let’s do something worthy of the effort, and something with the payoff equal to the effort put in.

The difference is Mars is a whole other planet, not just a distant land. It can be seen as a challenge—an extreme challenge—and it is, so why go? It will test our knowledge, our resourcefulness, and the limits of our abilities in every way. It will be risky, and yes, people will die. But in today’s risk-averse world, the value of a challenge has been grossly underestimated. As people become more and more “stay at home” and turn to ever more push-button solutions, we are losing our survival instinct. Existing and living to simply relax at home where it is safe is not good for any of us in the end.

Take the obesity epidemic an example: people are piling on the pounds, sitting around in front of the TV, and literally shortening their life spans while they do this. Exercise is the key to health and growth for bodies and minds, and this also applies to our society. Expansion to new frontiers should be seen as extremely valuable to us now. In a world that is struggling with political solutions to big problems like the environment, hunger, poverty, and disease, we need a challenge like Mars now more than ever. We need to “sharpen up”, so let’s do something worthy of the effort, and something with the payoff equal to the effort put in. Mars, however we get there—be it a direct path or via the Moon, and with government programs or through private commercial space development—should be in our sights, for it has the potential to change our world in ways that we dearly need now.

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

Frank Stratford is the founder and executive director of MarsDrive. His writing is focused on human space exploration and Mars settlement issues, with a special focus on researching alternative Mars transport solutions. He lives in Melbourne, Australia.

Monday, December 21, 2009

Obama Sets NEW Course for Space Exploration Promotes Private Firms - WSJ.com

New Course for Space Exploration Promotes Private Firms - WSJ.com: "The Obama administration appears set to chart a new course for U.S. space exploration by promoting the use of private companies to ferry astronauts into orbit, according to people familiar with the matter.

A Soyuz spacecraft is set to launch Monday in Kazakhstan, with a Russian flight commander and U.S. and Japanese flight engineers.The controversial plan would mark a trailblazing departure for the nation's space program by allowing a group of closely held start-up companies, for the first time, to compete for a central role in an arena previously dominated by much larger, publicly traded contractors with long track records working for the National Aeronautics and Space Administration.
Journal Community Discuss: Is the U.S. space program on the right track?
The initiative is part of a broader realignment of goals for an agency suffering from low morale and chronic budget shortfalls that also has been whipsawed by changing priorities in successive administrations."

New Course for Space Exploration Promotes Private Firms .ArticleComments (16)more in Politics ».
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By ANDY PASZTOR
The Obama administration appears set to chart a new course for U.S. space exploration by promoting the use of private companies to ferry astronauts into orbit, according to people familiar with the matter.

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Agence France-Presse/Getty Images .
A Soyuz spacecraft is set to launch Monday in Kazakhstan, with a Russian flight commander and U.S. and Japanese flight engineers.The controversial plan would mark a trailblazing departure for the nation's space program by allowing a group of closely held start-up companies, for the first time, to compete for a central role in an arena previously dominated by much larger, publicly traded contractors with long track records working for the National Aeronautics and Space Administration.

Journal Community Discuss: Is the U.S. space program on the right track? .
The initiative is part of a broader realignment of goals for an agency suffering from low morale and chronic budget shortfalls that also has been whipsawed by changing priorities in successive administrations.

But even as it moves to outsource major components of the space program to private industry, these people said, the White House is planning to hedge its bets in various other ways. One likely option is to ramp up funding for certain in-house rocket programs that over the next few years could serve as a technical safety net, and eventually provide the families of more-powerful boosters required for longer-term exploration of the solar system.

The White House also intends to jettison policies that have been in place for more than a decade, by pushing for international cooperation and funding to develop spacecraft able to land and explore the surface of the moon, and ultimately perhaps Mars or one of its moons.

The administration's emerging endorsement for the spending blueprint comes at a crucial time, because senior White House aides are now laying out a plan for space exploration in the next fiscal year that is expected to meet stiff resistance in Congress. By splitting funding between NASA's traditional way of doing business and innovative private-sector initiatives, the administration is trying to forge a compromise that would bridge broader disagreements inside NASA and among segments of the aerospace industry.

The disputes revolve around the likely safety and reliability of relying on private space systems that have yet to be tested or, in some cases, even designed. Among the companies set to gain from the new policy are closely held Space Exploration Technologies Corp., founded by Internet entrepreneur Elon Musk. SpaceX, as it is known, already has a NASA contract for as much as $1.6 billion to transport cargo to the International Space Station. By the spring of 2010, the company is slated to conduct the first test flight of its larger Falcon 9 rocket intended to carry astronauts to the station.

If the White House launches a new era of commercial crew transportation, "the significance of that decision would be on par with government-supported development of railroads" that crossed the continent during the previous century, Mr. Musk said in an interview on Sunday.

But the emphasis on commercial-style services also presents opportunities for aerospace heavyweights such as Boeing Co. and Lockheed Martin Corp., both of which are anticipated to vie for contracts, according to industry and government officials.

Separately, Boeing in the next few weeks is expected to emerge as one of the winners in a small-scale NASA competition for research grants to work on advanced crew transportation concepts.

NASA's revised trajectory was discussed in broad terms during an Oval Office meeting last week between President Barack Obama and agency chief Charles Bolden.

Some details were reported on the Web site of the American Association for the Advancement of Science.

While no firm decisions have been made and budget numbers remain in flux, there appears to be broad agreement inside the administration over using private rockets and capsules to access the orbiting space station. "There is clearly a recognition that if you want to do that, it should be done seriously and with enough funding" to succeed, according to one senior administration official involved in the deliberations.

The changes come four months after a presidentially appointed study group, chaired by former Lockheed Martin Chairman Norman Augustine, sharply criticized NASA's moon-oriented exploration program, dubbed Constellation, as short-sighted and underfunded. Instead, the committee advocated switching to commercially run rocket programs as a way to let NASA devote scare resources to more-ambitious exploration goals.

NASA officials have declined to discuss the deliberations, except for the renewed focus on international cooperation. In a speech earlier this month, Mr. Bolden indicated he has explicit instructions from the president to engage the Chinese, European governments and other countries.

"There are not a lot of things I can tell you with certainty" about the agency's direction, the NASA chief said. "But I can tell you, [Mr. Obama] said, do that."

On Friday, a White House press official said Mr. Obama hasn't made any final determination, but the spokesman reiterated the president's "commitment to human space exploration, and the goal of ensuring that the nation is on a sustainable path to achieving our aspirations in space."

The idea of outsourcing a big part of NASA's work has been circulating around Washington and in industry circles since the summer, but only recently has it garnered unequivocal support from the highest levels of the Obama Administration. It's likely to cost the agency as much as $3.5 billion extra to pursue the initiative, possibly including funding to help develop crew-escape systems for some of the rockets considered likely to vie for firm transportation business.

At this point, according to people familiar with the details, it's not clear whether the additional money will come from existing NASA programs or new Capitol Hill appropriations. NASA's total budget, including environmental, unmanned and other programs, is about $18.7 billion annually, though there is some talk that it may go up by $1 billion or more in the fiscal year starting October 2010.

So far, most of the relevant committees in Congress have been highly skeptical of commercial crew transportation. Members of the House Science subcommittee with oversight for NASA programs have been particularly outspoken in opposition.

Worried about crew safety ad losing thousands of contractor jobs across several states if large portions of the current human exploration program are shelved, Congress earlier this month adopted language explicitly barring NASA from abandoning or substantially revising Constellation without prior approval from lawmakers. Florida, Alabama, Texas and Utah are some of the states that would be hardest hit by major changes.

Proponents of new commercial-style programs, on the other hand, contend that such a switch would create thousands of new jobs at fledgling companies hoping to ride the latest trend. Jeff Greason, a member of the Augustine committee and president of XCOR Aerospace of Mojave, California, one of those startups, signaled on Friday that a compromise would be acceptable to his faction. In the few years it's bound to take commercial space projects to prove their value, he said in an interview Friday, it would be smart "for NASA taka advantage of the long years of experience" shared among established contractors by allowing them to compete for some of the anticipated work.

One group certain to compete is the United Launch Alliance, a joint venture between Boeing and Lockheed that now supplies nearly all of the Air Force's rockets.

One of the biggest outstanding questions is what happens to the current plans to develop and build the Ares I rocket, intended to start its NASA work by blasting astronauts into orbit. The Augustine study group basically recommended killing Ares I, partly due to its large price tag and longer than anticipated development. Congressional supporters have argued equally strongly that it should be continued. Indeed, Ares supporters are campaigning for accelerated development of the booster, plus as many as three extra test flights over the next few years.

Some NASA officials, who have been scrambling to find a way to make that happen, argue it's less risky than relying on commercial rivals such as SpaceX.

But according to people close to the situation, the White House hasn't yet decided which way to go. In any event, NASA's revised spending plan is expected to emphasize development of a so-called "heavy lift" family of follow-on rockets, able to blast 100 or more tons off the launch pad.

Write to Andy Pasztor at andy.pasztor@wsj.com

Printed in The Wall Street Journal, page A7

Thursday, December 17, 2009


December 16th, 2009
Could there be Life on Jupiter and Saturn's Moons?
Written by Nicholos Wethington

The ongoing search for the existence of life that doesn't call the Earth 'home' could potentially find that life right here in our own Solar System. There is considerable debate about whether evidence for that life has already been found on Mars, but astronomers might do well to look at other, more exotic locations in our neighborhood.


http://www.universetoday.com/2009/12/16/could-there-be-life-on-jupiter-and-saturns-moons/
At the recent meeting of the American Geophysical Union in San Fransisco, Francis Nimmo, who is a professor of Earth and planetary sciences at UC Santa Cruz, said that the conditions on Saturn's moon Enceladus, and Jupiter's moon Europa may be just right to harbor life.
Nimmo said, "Liquid water is the one requirement for life that everyone can agree on." The water underneath the icy crusts of Enceladus and Europa may just be teeming with alien fish and algae, or more basic forms of life such as bacteria.

Nimmo is one of a long list of scientists speculating on the existence of life on these watery moons. A discovery of any life form originating from a planet other than the Earth "would be the scientific discovery of the millennium," Nimmo said. And even saying that is an understatement.

If life were able to exist in the watery oceans of the moons around Saturn and Jupiter, Nimmo said, it would mean that the 'habitable zone' around a star would extend much further out than previously thought, to moons that orbit large gas giants in other systems around faraway stars.

The possible ocean under the surface of Enceladus may receives its heat from the tidal forces of Saturn. That is, if there is an ocean under the surface of Enceladus, as that topic is still somewhat debated among astronomers. The constant tug of Saturn's gravitational pull may stretch the interior of the planet enough to heat the water below the crust of ice, which is estimated to vary in thickness between 25km to 45km. Geysers of frozen water forced out of crack on Enceladus' surface have been observed by the Cassini mission, and the craft has even flown through the plume of one of these jets.

Here's a video of Carolyn Porco, who leads the imaging team on the Cassini mission, talking about the potential for life inside the moon, and some of the discoveries made by Cassini so far:



Evidence for the ocean under Europa's icy skin comes from the Galileo mission, which passed by the moon in 2000 and took measurements of the moon's magnetic field. Variations in the magnetic field have led astronomers to believe there is a vast ocean of water under the surface, leading to natural suppositions about the potential of its habitability.

Europa's ocean is heated much in the same way as that of Enceladus: both moons have an eccentric orbit around their much more massive planets, and this orbit causes a shift in the way the planet tugs on their interiors, causing friction in the cores which in turn heats them up.

The core and surface of these moons both are possible sources of chemicals that are necessary for life to form. Impacts from comets can leave molecules on the surface, and light from the Sun breaks down compounds as well. Organic molecules and minerals may originate in the cores of the moons, streaming out into the watery 'mantle'. Such nutrients could potentially support small communities of exotic bacteria like those seen around hydrothermal vents here on Earth.

Of course, just because these moons are habitable doesn't mean that life exists there, as Nimmo and other planetary scientists are quick to point out. Cassini may still provide evidence of life on Enceladus, as the data from this last flyby of the plumes is still being analyzed. Future missions to Europa, such as the proposed 'interplanetary submarine', may also give us an answer to the question of life's existence elsewhere, and of course the quest continues for a mission to Mars that will finally give us some idea of its habitability now or in the past.

Until the data comes back from these missions, though, we'll still have to wait and speculate.

Source: UC Santa Cruz press release

Sunday, August 23, 2009

Life In The Universe Takes Orders From Space

Life In The Universe Takes Orders From Space: "Life In The Universe Takes Orders From Space
ScienceDaily (Feb. 20, 2004) — A century ago, when biologists used to talk about the primordial soup from which all life on Earth came, they probably never imagined from how far away the ingredients may have come. Recent findings have the origins of life reaching far out from what was once considered 'the home planet.' Evolution on the early Earth may have been influenced by some pretty far-out stuff."



Life In The Universe Takes Orders From Space
ScienceDaily (Feb. 20, 2004) — A century ago, when biologists used to talk about the primordial soup from which all life on Earth came, they probably never imagined from how far away the ingredients may have come. Recent findings have the origins of life reaching far out from what was once considered "the home planet." Evolution on the early Earth may have been influenced by some pretty far-out stuff.


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See also:
Plants & Animals
•Extreme Survival
•Cell Biology
•Evolutionary Biology
Space & Time
•Asteroids, Comets and Meteors
•Cosmology
•Astrophysics
Reference
•Meteorite
•Astrobiology
•Origin of life
•Phosphate
In a paper published this week in the journal Science, Arizona State University Chemistry Professor Sandra Pizzarello claims that materials from as far away as the interstellar media could possibly have played an active role in establishing the chemistry involved in the origin of life on this planet.

In the paper, Pizarello and her co-author Arthur L. Weber of the SETI Institute show that the exclusive chirality of the proteins and sugars of life on Earth - their tendency to be left- or right-handed, could in fact be due to the chemical contribution of the countless meteorites that struck the planet during its early history. This paper provides a plausible explanation for how, with a little help from outside, the chemistry of non-life - characterized by randomness and complexity - becomes the ordered and specific chemistry of life.

Pizzarello studies meteorites and the chemicals housed within them. A particular type of meteorite - carbonaceous chondrites - holds particular interest. Carbonaceous chondrites are very primitive, stony meteorites that contain organic carbon. These meteorites are rare, but also very exciting for chemists interested in the origins of life on Earth and in the solar system. They contain amino acids - the molecules that make up proteins, and an essential part of the chemistry of life.

According to Pizzarello, it has been known for the last century that there are large amounts of carbon, hydrogen and nitrogen - the so-called biogenic elements - in the cosmos. And that it is reasonable to assume that these elements might have undergone some amount of chemical evolution before life even began.

According to Pizzarello, who studies meteorites from the collection at ASU (which has the largest university-owned collection in the world) the meteorites are the only evidence of chemical evolution scientists have in hand today. New techniques of meteorite analysis are leading to great breakthroughs in understanding where these meteorites came from and how they were formed. Even more exciting, work Pizzarello and her colleagues have recently published in Science explores what sort of contribution the chemical evolution represented by meteorites might have had on the early Earth.

The paper addresses what has been a basic difficulty in relating the chemical evolution represented by meteorites and the origin of terrestrial life on Earth. According to Pizzarello, this problem is that chemical evolution - what we see in meteorites - is characterized by randomness, while terrestrial life relies on specificity and selection. For example, the meteorites contain over 70 amino acids. A mere 20 amino acids make up life's proteins. "There is a fundamental difficulty in trying to figure out how you go from confusion and randomness to functionality and specificity," said Pizzarello.

So far, only one trait has been found to be similar, to some extent, between amino acids in meteorites and biopolymers, that of L-"handedness" (chirality). Because organic molecules can be asymmetric if they have different groups attached to a carbon atom, they can arrange spatially in two ways, like the two hands, and be either left or right handed. All proteins involved in life on Earth are made up of L-amino acids, while sugars involved in life have a D structure. Scientists call this "homochirality."

An overabundance (excess) of the L-form (the chemical name is enantiomer), has also been found in some amino acids in meteorites. Pizzarello and Weber devised an experiment to find whether or not the amino acids found with L-enantiomeric excess in meteorites could have transferred their asymmetry during organic syntheses on the early Earth . If so, the meteorites could have provided a constant influx of materials with this excess - especially during a period early in the solar system's history in which the Earth and other planets were pummeled heavily by meteorites.

Pizzarello and Weber report in Science that in fact their experiment succeeded in proving this possibility. In the laboratory, when performing sugar syntheses in water, using reactions that modeled what may have existed on the early Earth, the asymmetry in the amino acids led to a similar asymmetry in the sugars. Pizzarello and Weber thus were able to conclude that the delivery of material from outer space via meteorites - despite the seeming randomness and complexity of these materials - could in fact have "pushed" chemical evolution on Earth toward homochirality.

Pizzarello points out that these findings do not imply that life did not evolve on Earth, or that the meteorites were the only early source of enantiomeric excess - only that the steady contribution of these meteorites might have provided a nudge in the "right" (or, more accurately, "left") direction.

Friday, July 10, 2009

Friday, July 10, 2009
Buzz Aldrin: We need to forget about the Moon and go to Mars.
As the second man to ever walk on the moon (he stepped out of the lunar module about 15 minutes after Neil Armstrong), Buzz Aldrin knows a little something about space exploration, about bold ambitions and great risks. Now, Aldrin is speaking out about NASA, and declaring loudly that the space agency has lost its boldness.

The next step in humanity’s exploration of space must be a bootprint on Mars, he says.

Says Aldrin: “As I approach my 80th birthday, I’m in no mood to keep my mouth shut any longer when I see NASA heading down the wrong path. And that’s exactly what I see today. The ­agency’s current Vision for Space Exploration will waste decades and hundreds of billions of dollars trying to reach the moon by 2020—a glorified rehash of what we did 40 years ago. Instead of a steppingstone to Mars, NASA’s current lunar plan is a detour” [Popular Mechanics].

http://www.popularmechanics.com/science/air_space/4322647.html

Aldrin says that while the moon is interesting scientifically, it’s not promising for commercial activities. Mars, on the other hand, holds much more potential for a human colony, Aldrin says. “It’s much more terrestrial. It has a thin atmosphere and a day/night cycle that is very similar to ours. It has seasons. Russia perhaps is still entertaining the possibility that the moons of Mars might have access to ice or water” [The New York Times], says Aldrin.

http://www.nytimes.com/2009/06/21/magazine/21fob-q4-t.html?_r=1

His comments come at a significant time, as the Obama administration recently ordered a review of NASA’s human spaceflight program. Aldrin hopes that the review committee will listen to him and other NASA critics and scrap the Ares rockets currently under development, which are expected to bring the next generation of astronauts into space. It would be cheaper, Aldrin says, to adapt existing satellite-launching rockets to carry a crew capsule, which would allow NASA to spend its time, money, and energy on establishing a Martian outpost.

Taking a lesson from the ups and downs of NASA funding over the years, Aldrin says “we shouldn’t be dependent on a program that can be cancelled once we’ve gone and returned. We need to start something that has a self-sustaining nature. Six people can’t get that done. But 40, 50 or 60 can. You need to build a thriving, self-sustaining settlement that doesn’t need extensive re-supply from Earth” [The Wall Street Journal]. Aldrin says we ought to send the first settlers to Mars by 2035, which would be 66 years after the first steps were taken on the moon.

http://online.wsj.com/article/SB124586953937749041.html

=========================================================================


Technology Patents
Aldrin Permanent Space Station
By SABRA CHARTRAND
Published: February 15, 1993
EDWIN E. (BUZZ) ALDRIN JR., who walked on the moon as an
astronaut in 1969, last week received a patent for a permanent space
station he designed alone in his home office. Mr. Aldrin, who went to
the moon with Neil Armstrong on the Apollo 11 mission, wants his
space station to be the core of a "complete family of spacecraft that
support it."
The United States has issued more than five million patents since
1790, but space stations joined the ranks only in 1964. About two
dozen such patents have been issued, most for stations that must be
launched in pieces and assembled in space or that are small enough to
be carried aloft inside the space shuttle.
Mr. Aldrin's design, though large enough for a crew of 8 to 10
astronauts, can be launched in one piece and then unfolded in space.
But he said it would rely on "a larger launch vehicle like the Saturn 5
rocket," which the United States no longer uses. He hopes for
eventual cooperation with the Russian space program, which still has
a powerful rocket capable of putting a heavy payload into space.
A Tube Shape
Mr. Aldrin's space station is shaped like a tube with cylindrical crosssections
that house pressurized modules of living quarters and
laboratories; the modular construction means it can be expanded in
size. The interconnected modules are surrounded by struts and
trusswork in a "cube octahedron," having eight sides, to protect them
from things like collisions with docking spacecraft.
The design also calls for fixed solar panels.
"It's a lot tighter, and there's less movement" than in space stations
with solar panels that rotate, he said. He contends that rotating
panels cause too much vibration. "Whenever panels move, it disturbs
the micro-gravity, and that interferes with scientific experiments and
activity."
His plan is quite different from the linear architecture of the space
station Freedom, which the National Aeronautics and Space
Administration plans to start launching, in pieces, in 1996. Freedom
also uses rotating solar panels and is configured so that shuttles can
dock with it directly.
Mr. Aldrin's space station has 14 berthing zones for small transfer
spacecraft that would travel between it and larger craft like a shuttle.
Mr. Aldrin also envisions other smaller, unmanned stations devoted
to zero-gravity experiments deployed around his space station. He
acknowledges that manufacture of his space station is probably a long
way off, but he says he may market his design as a toy. He received
patent 5,184,789.

============================================================


I had a splendid career at NASA as an astronaut in the Gemini and Apollo programs. The capstone, of course, was my moonwalk on the Sea of Tranquility 40 years ago. I have only two regrets from my NASA days, and both were my own fault: I failed to speak out when I saw bad decisions being made. The first came in 1966, when NASA, in a fit of excessive caution, canceled the Astronaut Maneuvering Unit (AMU), the Buck Rogers–style jet backpack I was scheduled to try out on Gemini 12. Despite difficulties with the AMU on Gemini 9, I was very confident I could make it work. But like a good astronaut, I kept my mouth shut, and I’ve regretted it ever since. As it turned out, it took 18 years for NASA to develop another jet pack, the Manned Maneuvering Unit, used on three space shuttle missions in 1984.

My second bout of wishy-washiness, however, had more far-reaching implications. In the early ’70s I was part of a NASA committee to establish the basic architecture of the space shuttle. One of the approaches we considered was a manned booster that would have its own pilot and glide back to the Cape after giving the orbiter its initial push. It was a silly idea—way too expensive. But I didn’t object strongly enough, and we wasted a year and millions of dollars on it.

That delay and expense eventually forced a hurried decision. Instead of the customary liquid-fuel boosters like the Atlas, Titan and Saturn, which had flawless track records on Mercury, Gemini and Apollo flights, the shuttle committee decided to go with cheaper solid-fuel boosters, which had never been used for manned spaceflight. Solid-fuel rockets are lower in performance and can’t be shut off once ignited—and when something goes wrong, it tends to be catastrophic. Fifteen years after that decision, a solid-booster failure brought down Challenger, and the unhappy legacy of solid boosters lives on today in the underpowered, vibration-prone Ares I, the crew-launch rocket NASA is developing.

As I approach my 80th birthday, I’m in no mood to keep my mouth shut any longer when I see NASA heading down the wrong path. And that’s exactly what I see today. The ­agency’s current Vision for Space Exploration will waste decades and hundreds of billions of dollars trying to reach the moon by 2020—a glorified rehash of what we did 40 years ago. Instead of a steppingstone to Mars, NASA’s current lunar plan is a detour. It will derail our Mars effort, siphoning off money and engineering talent for the next two decades. If we aspire to a long-term human presence on Mars—and I believe that should be our overarching goal for the foreseeable future—we must drastically change our focus.

Here’s my plan, which I call the Unified Space Vision. It’s a blueprint that will maintain U.S. leadership in human spaceflight, avoid a counterproductive space race with China to be second back to the moon, and lead to a permanent American-led presence on Mars by 2035 at the latest. That date happens to be 66 years after Neil Armstrong and I first landed on the moon—just as our landing was 66 years after the Wright Brothers’ first flight.

NASA’s looming short-term dilemma is the five-year gap between the shuttle’s scheduled retirement next year and the debut of the Ares I rocket and the new Orion spacecraft, in 2015. During that hiatus, we’ll be writing checks to the Russians to let our astronauts hitch rides on Soyuz rockets to the International Space Station, in which we’ve invested $100 billion. I find that simply unacceptable.

READ THE REST AT http://www.popularmechanics.com/science/air_space/4322647.html

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Forty summers ago, the world was transfixed by the sight of you walking on the moon. Have we made any progress since the Apollo 11 flight?
Not a whole lot. We shifted our attention to low-earth orbit.

Meaning the shuttle program, which is about to end?
We’ve been concentrating on the shuttle, the space station and laying the groundwork for returning to the moon. The disturbing part is that, all this time, Russia has been concentrating on Phobos, a moon of Mars, and a number of us have recently realized just how significant that would be as a stepping stone to Mars.

Do you think Mars has more to offer than the moon?
Yes, much more. It’s much more terrestrial. It has a thin atmosphere and a day/night cycle that is very similar to ours. It has seasons. Russia perhaps is still entertaining the possibility that the moons of Mars might have access to ice or water.

Are you saying the moon has become passé?
It is not promising for commercial activities. It’s got science, it may have strategic values but I don’t believe it’s a requirement for Americans to be present to take advantage of the resources. Their viability can be determined by robots.

Are the days of American pre-eminence in space over?
Yes.

Is it true that Buzz Lightyear, the cartoon astronaut, was named after you?
Apparently, but there’s no evidence in my bank account to substantiate that.

Do you know Charles Bolden, the former astronaut who has been nominated by President Obama to head NASA?
I know him quite well. I was a little puzzled when I realized that his major champion is Senator Bill Nelson of Florida, who flew with him.

Right, Nelson was a congressman when he flew on the shuttle. But isn’t that a good thing, making it easier for Bolden to muster Congressional support for NASA? Why were you puzzled?
I’m in favor of changing the destination of humans. There are a lot of manned missions that can be done, but not in the direction of the moon. I am not sure about Bill Nelson. I haven’t heard him say, “Let’s junk the NASA plan to send humans to the moon.” He’s not about to say that. That would not be very popular.

You were the second person to walk on the moon, after Neil Armstrong. Was it annoying to go second?
No. At that time I wasn’t looking for more laurels.

You gave yourself communion on the surface of the moon. Are you still a churchgoer?
No. My Sunday mornings are spent in a recovery meeting in Pacific Palisades.

In your new memoir, “Magnificent Desolation,” which comes out this week, you recount a period of ruinous drinking and clinical depression following your time in space.
I inherited depression from my mother’s side of the family. Her father committed suicide. She committed suicide the year before I went to the moon.

Was your mother’s maiden name really Marion Moon?
Yes. I didn’t feel NASA needed to know that. Somebody would think I was trying to get favored treatment because my ancestors had the name Moon. And that’s a joke.

Do you find it odd that we’re observing the 40th anniversary of both the moonwalk and Woodstock?
I don’t think I’m going to journey to Woodstock.

What sort of music do you like?
I just did a rap session with Snoop Dogg and a rap composition called “Rocket Experience.” It’s going to be an online video. The Web site is funnyordie.com.

Do you actually sing on the video?
I relate. It’s not singing, it’s rapping.

http://www.youtube.com/watch?v=hTKedyQQkZQ


How old are you now?
On July 20, the anniversary of landing on the moon, I will be precisely 79 and a half. It’s nice to be on this side of troubled waters.

INTERVIEW HAS BEEN CONDENSED AND EDITED.

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Forty years ago next month, Neil Armstrong and Buzz Aldrin walked on the moon. Now Mr. Aldrin, 79, has authored a memoir, "Magnificent Desolation."


Buzz Aldrin's moon walk July 20, 1969.
.The book begins with that historic walk ("a virginal experience"), segues to Mr. Aldrin's battle with alcoholism that followed ("Beverly pleaded with me to stop drinking"), and then explores the possibilities of a meaningful second act in life (as a space exploration advocate, "I was sixty-nine years of age, but I felt more energized than ever").

The Apollo 11's lunar landing on July 20, 1969 transformed both Mr. Armstrong and Mr. Aldrin into national heroes. Mr. Aldrin's walk on the Sea of Tranquility followed Mr. Armstrong's by about 20 minutes. But Mr. Aldrin also paints a somewhat withering self-portrait of an intelligent man with a substantial ego who grappled, sometimes unsuccessfully, with career and life disappointments.

This is Mr. Aldrin's second memoir, which he wrote with Ken Abraham. His first, "Return to Earth" (1973), discussed in part his decision in late 1971 to seek psychiatric help for depression. Mr. Aldrin was interviewed by telephone.

WSJ: What prompted you to write this book?

Buzz Aldrin: The first book, "Return to Earth," told the story of the challenges I faced. But it was incomplete. I'm quite a bit different today. In that book I dealt with recovery from depression. But then I found I had a more extensive problem [alcoholism], and that recovery, which took years, was very challenging.


The Aldrin Collection

Buzz Aldrin
.WSJ: You say that people often took advantage of your fame. Were you ever able to turn that fame to your advantage?

Mr. Aldrin: Probably not as much as others have. I was essentially non-functional from ages 45 to 55. I lost out on a good number of opportunities.

WSJ: If you were in charge of setting the nation's space agenda, what would it be and how would you accomplish it?

Mr. Aldrin: I wouldn't want to be in that position of having to explain everything all the time to Congress, and being beholden to the wishes of corporate America. But if I could be an advisor, I would say that we need to develop a lifting body, a spacecraft that, as it returns to the atmosphere, has lift and can maneuver and then can line up on a runaway. That's the way we've been doing it since the Wright brothers. I'm in favor of a flying spacecraft, and it's not in our future right now.

WSJ: Do we need a settlement on Mars?

Mr. Aldrin: Yes, we shouldn't be dependent on a program that can be cancelled once we've gone and returned. We need to start something that has a self-sustaining nature. Six people can't get that done. But 40, 50 or 60 can. You need to build a thriving, self-sustaining settlement that doesn't need extensive re-supply from Earth.

WSJ: Do astronauts today have a chance for true exploration?

Mr. Aldrin: I hope they will. I hope they'll have a different long-term objective than going to the moon a couple of times, retiring and playing golf. We ought to have settler astronauts who can touch down on Mars by 2029 or 2031, or certainly by 2035, which will be 66 years after we landed on the moon.

.WSJ: Does the recession put an end to your dream of space tourism?

Mr. Aldrin: No. We need something to inspire hope in people. This country is lagging in engineering, science and math. We need to inspire teachers and students to get into productive areas, not just thinking about making money. That's the evil that got us into this situation. We're in deep trouble because of greedy people who used the system only to promote themselves.

WSJ: Have we lost our willingness to take risks?

Mr. Aldrin: You bet. It's all about, what's in it for me? But this is an opportunity for us to rid ourselves of that. Instead of debt, let's have inspiration and achievement.

WSJ: Why do people sometimes believe that science and religious faith are incompatible?

Mr. Aldrin: I don't know. One of the best guides of philosophy is Einstein's essays in which he talks about religions of fear that evolve into religions of morals and ethics. Then he discusses a higher level of cosmic awareness of the universe, and the possibility of dealing with other living creatures in an increasingly mature way. Unfortunately, we aren't very mature, for selfish, greedy reasons.

Write to Jeffrey A. Trachtenberg at jeffrey.trachtenberg@wsj.com