I don't mean life at present, but perhaps life forms millions of years ago when there was still water on the planet. Is there any indication that microorganisms existed in the distant past on Mars?
2006-11-09 08:18:43 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
The only clues to life on Mars are that it once had water, and there may be water beneath the surface in which some kind of primitive life might have survived from Mars watery period.
Some water ice also forms at the poles, and may harbor some primitive lifeforms that respond to the seasons. But no probe has been there to do the study.
There is still a lot of debate regarding the Mars meteorites and whether they actually contain microbes. Firstly, they may not be fossilised microbes at all, and secondly you have to show clearly that the meteorites have not been infected by Earth microbes.
So, nobody to date can say with any certaintly that life exists anywhere else but on Earth.
Food for thought.
2006-11-09 08:29:45 · answer #1 · answered by nick s 6 · 0⤊ 0⤋
There is a meteorite believed to have originated on Mars that has what some people think are fossilized microbes in it. This meteorite was found on Earth though. No space craft has found any evidence of past life.
2006-11-09 16:23:23 · answer #2 · answered by campbelp2002 7 · 0⤊ 0⤋
Hi. Only if the found a fossil. Right now they are pretty sure that liquid water existed in large quantities which supports the possibility.
2006-11-09 16:22:28 · answer #3 · answered by Cirric 7 · 0⤊ 0⤋