Organic molecules found by the Curiosity rover are too common to be explained by any process we know, other than life, according to a new study. That, of course, doesn’t rule out the possibility that ...

New method reveals chemical signs of early microbial life in ancient Earth rocks, showing photosynthesis evolved much earlier than believed.

There are no simple solutions on the Martian surface. It is the kind of environment where you would expect molecules to decompose rather than endure—dusty, ...

Organic compounds discovered on the Red Planet cannot be fully explained by non-biological sources, say astrobiologists.

A year ago, NASA announced that its Mars rover Curiosity had discovered long-chain organic compounds. Their quantity suggests ...

Scientists studying a rock sample collected by NASA’s Curiosity rover have uncovered something tantalizing: the largest organic molecules ever detected on Mars. The compounds — decane, undecane, and ...

More than a decade after landing in Gale Crater, NASA’s Curiosity rover has uncovered something unexpected in the Martian ...