Martian Life's Last Stand in the Trenches? "Scientists have found water-bearing deposits on Mars that are out of step with what was happening elsewhere on the planet, raising the prospect that the sites could have hosted Martian life's last stand."
posted by Fizz on Sep 28, 2011 - 27 comments

The "Great Filter" is a hypothetical barrier to explain why civilisations are so unlikely to progress to the point of inter-stellar colonisation that we have not encountered any in 40 years of looking. Maybe humanity has already negotiated the filter - as some massive evolutionary improbability - or perhaps it lies in our future as an almost-certain threat to our existence? We should hold our breath as we look for evidence of life on Mars.
posted by rongorongo on May 12, 2008 - 85 comments

Real robot drama is happening on Mars today. Spirit, racing for her life to find shelter before winter, injured and underpowered after four years of hard labor, may have made her most significant find yet. The broken foot she's dragged behind her for the past two years unexpectedly uncovered evidence of a once-wet Mars with conditions theoretically hospitable for primitive life.
posted by Chinese Jet Pilot on Dec 12, 2007 - 89 comments

ESA scientists announced that a giant sea is hidden under the Martian surface. With discoveries like this and weird photos like this, how long can it be before we find conclusive proof of extraterrestrial life?
posted by borkingchikapa on Feb 21, 2005 - 30 comments

Life - a strong case for life on mars was presented sunday
posted by sourbrew on Feb 17, 2005 - 12 comments

A pair of NASA scientists told a group of space officials at a private meeting here that they have found strong evidence that life may exist today on Mars. Spirit has also recently taken a very intriguing photo. Of course this is just making things official, since we've known the truth for years.
posted by jikel_morten on Feb 16, 2005 - 85 comments