Life On Mars? NASA Curiosity 'Sniffs' Methane Spike In Atmosphere, Finds Organic Molecules In Rock Sample

NASA announced Tuesday that its Mars Curiosity rover detected a "a tenfold spike in methane" in the atmosphere. Organic molecules were also detected in a rock sample collected by the rover. Curiosity was "sniffing" the atmosphere using its Sample Analysis at Mars (MARS) scientific suite, which detected increased methane in 2013 and again in 2014.