Identifying regions on Mars for past life signs
Thursday, May 19, 2016 - 07:20
in Astronomy & Space
Mars has been a frozen desert for billions of years. Any evidence of life near the surface will likely be fossilized and probably damaged, thus making it very difficult to recognize. If life ever evolved on Mars, there is a real possibility that the last surface ecosystems occupied land habitats, not aquatic ones. Those "last outposts" could contain the best-preserved evidence of past life on the planet.