The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

Low clouds may have spoiled the view from the ground, but a Falcon 9 set a new record early Saturday as SpaceX pushes ...

Non-mixing layers of water and hydrocarbons thousands of miles deep could explain the icy planets’ strange magnetic fields.

The Mars Express orbiter has kept an eye on an elongated cloud above Arsia Mons volcano for the last few years. The cloud is reoccurring, grows incredibly fast and is "made up of water ice," according ...

NASA’s Curiosity rover captured stunning images of Martian twilight clouds, revealing iridescent dry ice formations on Mars.