On January 25, 2004, NASA's Opportunity rover landed on Mars! This was the second of NASA's twin Mars Exploration Rovers to ...

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.

"The structures that we were able to identify in the images are clearly the mouth of a river into an ocean." The post ...

Nearly 14 years ago, NASA’s Curiosity rover landed on Mars for a mission to explore the red planet and discover if it had an ...

NASA has launched the Mars to Table Challenge, seeking Earth-independent food systems capable of sustaining astronauts on ...

Ancient shoreline features hint that water on Mars once formed a vast ocean.

NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts ...

Even though the Red Planet's atmosphere is thin, wind is still one of Mars' most relentless sculptors.

For nearly a month, NASA has been scrambling to make contact with a spacecraft in orbit around Mars that abruptly fell silent. The space agency lost communication with the MAVEN probe (short for Mars ...

A Mars spacecraft has now been AWOL for more than a month. But NASA hasn't given up hope of restoring contact with the MAVEN ...