Wanted: A married couple to fly to Mars

A private space venture is seeking a married couple to take a 501-day space flight, a fly-by to Mars and back.  The couple should be past child-bearing age–since radiation levels could pose a problem to the reproductive system–and be able to function and get along in a living space half the size of an RV for more than 16 months.  The planners are looking for a married couple because of the need for strong compatibility and intimate emotional support during that 16 months flying through the void.

Any volunteers? [Read more...]

Being on Mars

To get a sense of what it would be like to be on Mars, turning around and taking in the view, check out this 360 degree click-and-drag zoomable panorama from the Mars lander Curiosity.  (For full effect, go to the fullscreen view.)  Click on this link:  MARS Curiosity Rover first Color 360 Panorama – Round the world with panoramas.dk.

Sunday’s landing on Mars

Remember those spunky little rovers that were landed on Mars, sending back pictures of the Red Planet for years on end?  Well, another rover is scheduled to touch down on Mars this Sunday, August 6.

It’s the size of an SUV, with massive digging arms, lasers, and automated laboratories that may settle the question of Martian life once and for all.  The plan is for this 2000 pound vehicle, named “Curiosity,” to be dropped inside a Martian crater that appears to have once held water.  The difficulty of this landing, requiring pin-point precision of all systems, is being described as “seven minutes of terror” for the NASA team trying to pull this off.

If it works, we will greatly expand our knowledge of Mars.  And have some sublime photos of another world.

With Mars mission and rover Curiosity, NASA hunts building blocks of life – The Washington Post.

Organic chemicals on Mars

That Viking lander that did experiments 30 years ago on Martian soil found organic chemicals after all:

More than 30 years after NASA’s Viking landers found no evidence for organic materials on Mars, scientists say a new experiment on Mars-like soil shows Viking did, in fact, hit pay dirt.

The new study was prompted by the August 2008 discovery of powerful oxygen-busting compounds known as perchlorates at the landing site of another Mars probe called Phoenix.

Scientists repeated a key Viking experiment using perchlorate-enhanced soil from Chile’s Atacama Desert, which is considered one of the driest and most Mars-like places on Earth, and found telltale fingerprints of combusted organics — the same chemicals Viking scientists dismissed as contaminants from Earth.

“Contrary to 30 years of perceived wisdom, Viking did detect organic materials on Mars,” planetary scientist Christopher McKay, with NASA’s Ames Research Center in California, told Discovery News. “It’s like a 30-year-old cold case suddenly solved with new facts.”

“If the Viking team had said ‘Well, maybe there’s perchlorate in the soil,’ everybody would have said they’re crazy — why would there be perchlorates in the soil? It was only by having it pushed on us by Phoenix where we had no alternative but to conclude that there was perchlorate in the soil … Once you realize it’s there, then everything makes sense,” McKay added.

The Viking team’s verdict that Mars lacked organics was the lynchpin argument against another Viking experiment that looked for signs of microbial life. In the experiment, a bit of nutrient-laced water was added to a sample of Martian soil.

The air above the soil was then monitored for signs that the nutrients had been metabolized. The instrument detected tracer gases the first time the experiment was done, but subsequent runs did not. The results were considered inconclusive and remain contested.

New evidence for organics on Mars does not mean Viking found life, cautions McKay.

“Finding organics is not evidence of life or evidence of past life. It’s just evidence for organics,” he said.

But if NASA had realized there were organics on Mars, there might not have been a 20-year hiatus in sending landers for follow-up studies, said Rafael Navarro-González, with the Institute of Nuclear Science at the National Autonomous University in Mexico.

“We might have had continuing missions,” Navarro-González told Discovery News.

NASA plans to launch a follow-up mission to look for organics on Mars in November.

via Viking Found Organics on Mars, Experiment Confirms : Discovery News.

But do we know of “organics” apart from organisms?  Do organic chemicals exist in nature apart from life?  Maybe so.  Perhaps some of you can enlighten us.  But this seems pretty important in the quest to find extraterrestrial life.


CLOSE | X

HIDE | X