Mars, is there life?

Life on Mars?
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Running water on the surface of Mars

The Mars Global Surveyor, which has taken over a quarter of a million shots of Mars had been going over old ground, as its orbit dictated, and took a picture of a crater wall that it had previously shot – and found something that hadn’t been there before: A white trace that looks exactly like the trace left by a rivulet of water leaving a deposit. Compare the two images for yourself.

See also
Water on Mars * liquids on Mars * Life on Mars


The only explanation that can be proposed at the moment is that Martian water is under pressure and occasionally squirts out through the enclosing layer of frozen water, sometimes forming deposits as seen in this picture. Of course it could have been a one in a trillion chance that this happened – and that there just happened to be a satellite in orbit to see it. But that’s a very unlikely coincidence, it’s more likely that this is is happening all of the time.
See this article.

Life on Mars?

Which brings us full circle. There may not be ancient Martian civilisations or great canals of water, but there is water in abundance and beneath the surface it seems to be liquid. It would be a very hostile environment but how much more hostile than the bottom of the ocean in black smokers with water temperatures in the 100s of degrees? Or the Atacama desert where there is no water or water vapour and hasn’t been for thousands of years? There are microbiological creatures that live in acid, alkalines, high radiation, inside rocks, at ultra-high pressure, process methane instead of oxygen, and live in pools of benzene. And that’s just on Earth.
No one can claim there is no chance of life on Mars, we just have to look.


Last updated July 6, 2007 6:28 PM