After billions of dollars in spending and decades of planning, NASA may be forced to abandon precious samples of air, rock ...

Strange patterns carved into the surface of Mars' Nili Fossae region aren't alien sand art or the Martian version of Peru's Nazca Lines. They are, in fact, mineral deposits containing large ...

Despite its dry, dusty surface and thinner atmosphere, Mars may have more in common with Earth than scientists previously ...

Captured by the Orbiter's High-Resolution Imaging Science Experiment (HiRISE) camera, the shot was taken on February 28 this ...

NASA's Perseverance rover has discovered a haunting rock formation on Mars that looks unsettlingly ... flows or a powerful impact. Its pitted surface and dark coloration immediately set it apart ...

HiRISE is one of six observational instruments on the Mars Reconnaissance Orbiter that are used to document the planet’s surface in high detail. The camera primarily produces black-and-white ...

Carbonate minerals contain carbon dioxide, which, when present in the atmosphere, warms a planet. These minerals suggest that carbon dioxide could have previously existed in the atmosphere in larger ...

Such discoveries suggest water once flowed beneath Mars' surface. On Earth, sulfate minerals can preserve microscopic fossils of microbes. Finding similar structures on Mars could indicate past life.

NASA’s Curiosity rover was spotted making tracks on Mars’ surface in a new photo. Taken in February, the rover is seen as a tiny black speck as it makes its way to its next destination.