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 -
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 -
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 -