The detection of life beyond Earth would be one of the most profound discoveries in the history of science. The Milky Way ...

NASA has found a rock on Mars that it has dubbed Skull Hill. The rock is known as a "float rock," and NASA has no idea where ...

NASA's Curiosity rover has found iron-rich carbonates on Mars, offering new clues about the planet's ancient climate and ...

Mystery of where all the carbon dioxide went that once made the red planet far more hospitable has puzzled scientists for ...

Theories on its origin include it smashing into the Red Planet as a meteorite or being carried from elsewhere on the Mars surface. The space agency said: "The rover has encountered a variety of neat ...

Billions of years ago, Mars was warm, wet, and capable of sustaining liquid water on its surface. Scientists have long believed the Red Planet once had a dense atmosphere rich in carbon dioxide (CO₂), ...