Strange, sinuous gullies etched into the dunes of Mars are finally giving up their secrets. These gouges, new experiments reveal, are carved by the explosive sublimation of dry ice, burrowing down the ...

NASA’s Curiosity Mars rover took this selfie at a location nicknamed “Mary Anning” after a 19th century English ...

"This experiment's never been run before on another world," said Amy Williams, an astrobiologist working on the Curiosity mission.

NASA's Curiosity Mars rover has uncovered a diverse mix of organic molecules on Mars, including chemicals widely considered building blocks for the origin of life on Earth.

The Curiosity rover conducted a first-of-its kind experiment on Mars, detecting organic molecules that have never been observed before on the red planet.

NASA's Curiosity rover has discovered more building blocks of life on Mars after carrying out a chemistry experiment never before conducted on another planet, scientists said Tuesday. The organic ...