Samples taken from an ancient Mars rock may indicate that ancient life once existed on the Red Planet, according to a study ...

Scientists may be one step closer in their hunt for signs of past life on Mars after the Curiosity rover's latest find.

Scientists have discovered traces of organic molecules on the Red Planet and are not ruling out the possibility that they were produced by living organisms.

A new study suggests that long-chain organic molecules discovered by NASA’s Curiosity rover on Mars are difficult to explain ...