NASA’s veteran Mars orbiter MAVEN has fallen ominously silent, cutting off a decade-long stream of atmospheric data that reshaped how scientists think about the red planet’s past. After weeks without ...

For nearly a month, NASA has been scrambling to make contact with a spacecraft in orbit around Mars that abruptly fell silent ...

The new image incorporates data from additional wavelengths that bring the previously invisible ionized gas cloud into view.

In a quiet corner of an ancient riverbed on Mars, a speckled rock has pushed the search for extraterrestrial life into its ...

"How do you get to Mars when the launch vehicle is not necessarily going to Mars?" ...

Some places feel borrowed from elsewhere. Iceland is one of them. Walk across its lava fields, and the ground looks ...