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

Despite its small size, Mars seems to have a huge impact on the orbital cycles that govern Earth’s climate, especially those ...

Mars’s gravity shapes ice ages on Earth, new research finds - 'Without Mars, Earth’s orbit would be missing major climate cycles', computer models reveal ...

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

Advances in technology have reopened the debate over terraforming Mars, shifting it from an impossible dream to a long-term scientific and ethical question.

Mars has an active, electrically charged surface where dust storms and spinning dust devils regularly move and reshape the landscape. Mars is often portrayed as a dry, empty world, but the planet is ...

New research suggests Mars was once a blue planet, as scientists identify river deltas and signs of a vast ancient ocean on ...

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

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

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