“The presence of liquid water [on Mars] is a broad topic that includes rains, rivers, lakes, as well as oceans,” says Ezat ...

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

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

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 ...

Scientists believe modern technology to be crucial in 'supporting sustained missions' on Mars.

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 ...

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, once a world with rivers, lakes, and oceans, tells a tragic story written in rock and ice. The loss of its magnetic field exposed it to relentless solar radiation, stripping away its atmosphere ...

For anyone curious about what it's like to stand on another planet, Earth offers a few convincing previews. Mars may be 140 ...