Friday, March 15, 2013

Water on Mars

An announcement on Tuesday marked, quite literally, a watershed moment in the history of solar system exploration. NASA scientists said an analysis of drilled rock samples collected by the Curiosity rover shows that ancient Mars could have supported living microbes.

It is the first time that we've discovered actual evidence for fresh water on another planet.

We've been down this watery path before -- sort of. Back in 2004, NASA's Opportunity rover found evidence of ancient water on Mars.

For a place to be habitable by life as we know it, it has to have liquid water, heat sources like volcanoes or impact craters, and carbon-bearing organic molecules.

NASA: Yes, Mars could have hosted life