Methane-Producing Life Unlikely On Mars, Curiosity Finds

The Curiosity rover, is, by general consensus, pretty cool. The peripatetic planetary explorer, aka the Mars Science Laboratory, not only experienced one of the most dramatic and famous landings of all time when it arrived on the Red Planet last summer, it also showed the world was probably habitable in its past. It's only natural, then, that while Curiosity giveth, sometimes it can also taketh away -- in this case, interesting amounts of methane serving as possible evidence of sub-surface bact