After the Red Planet reemerged from conjunction — a period when NASA doesn't communicate with spacecraft because Mars is ...

In a new study, researchers say that nonbiological sources they considered could not fully account for the abundance of ...

The Curiosity rover is travelling along the lower slopes of Mount Sharp (Mars), a large mountain in the center of Gale Crater on Mars.

The team found that the walls of the drill hole were smooth enough to allow another attempt to see the underlying layers.

Known non-biological sources, from meteorites to surface chemistry, fall short of accounting for organic compounds detected ...