New evidence of ancient rivers suggests Mars may have been a "blue planet," thanks to an ocean spanning its entire northern ...

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 ...

Mars has an active, electrically charged surface where dust storms and spinning dust devils regularly move and reshape the ...

A new study has examined how future human missions to Mars could access one of the planet's most vital resources—water. The ...

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 ...

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too ...

Researchers uncover how Mars affects Earth’s orbit, offering new insight into the planetary forces behind ice ages.

A pull in the right direction ...

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 ...

Using images from cameras on Mars orbiters, an international research team has discovered structures on Mars that are very ...