Mars, long admired for its rusty hue and alien deserts, may play a far greater role in shaping life on Earth than once ...

Congress has handed NASA a rare reprieve, rejecting deep proposed cuts and approving a budget that keeps much of the agency’s ...

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 study by scientists at Penn State and NASA shows that intact biomolecules from dormant microbes break down much more slowly ...

Researchers worked out the ocean's size by finding how high the water level got in the Solar System’s largest canyon system.

Curiosity took the images in the morning and the evening to show what light looks like during different parts of the day.

Mars looks familiar from afar, but surviving there means creating a protective oasis in a hostile world. Instead of shipping ...

A Congressional bill restores funding for most NASA space science missions, but there is no money for returning samples ...

Mars had an Arctic-sized ocean, and scientists are only now beginning to see the outline of it. For a long time, the planet ...

Mars, often depicted as a barren red planet, is far from lifeless. With its thin atmosphere and dusty surface, it is an ...

When astronauts set foot on Mars, it will be one of humanity’s greatest milestones. These first steps will be the result of decades of research, engineering, and imagination coming together, marking ...