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

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

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

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

NASA lost contact with the MAVEN probe in Mars orbit, and teams are working to reestablish communications after an unexpected ...

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 ...

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

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

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 ...