NASA’s Curiosity rover recently captured a sweeping panorama of Mars’ Gale Crater under exceptionally favorable viewing conditions, offering one of the clearest looks yet at the vast Martian basin.

Did Mars' water escape underground, where it dwells today in vast amounts? Some scientists aren't so sure. Scientists are confident Mars was once abundant with water, as seen in massive flood-carved ...

CAPE CANAVERAL, Fla. (AP) — A comet from another star system will swing by Mars on Friday as a fleet of spacecraft trains its sights on the interstellar visitor. How to watch the Orionid meteor shower ...