Quote of the day

Does the presence of methane indicate that there is life on Mars?  Get your head around this assessment:

“That we detect methane in the atmosphere on Mars is not an argument that we have found evidence of life on Mars, but it’s one of the few hypotheses that we can propose that we must consider,” John Grotzinger, a scientist on the Curiosity team, told the American Geophysical Union meeting in San Francisco. “Large organic molecules present in ancient rocks on Mars is also not an argument that there was once life on ancient Mars, but it is the kind of material you’d look for if life had ever originated on Mars.”

This man should be a politician.