A mineral called siderite found abundantly in rock drilled by a NASA rover on the surface of Mars is providing fresh evidence ...

The discovery of siderite by NASA's Curiosity rover in Martian rocks provides crucial evidence suggesting Mars once had a ...

A surprise discovery in Gale Crater is the component that was missing in the puzzle of Mars's climate history. There, ...

A treasure trove of clues from Curiosity reveals that ancient Mars once trapped massive amounts of CO2 in its crust, thanks ...

Perseverance just stumbled upon one of Mars’ weirdest rocks yet—a formation covered in dark, spherical shapes with mysterious ...

Chengdu University of Technology-led research has established a high-resolution astrochronological framework spanning ...

Just a few months ago, Perseverance itself even spied popcorn-like textures in sedimentary rocks in the Jezero crater. In those cases, scientists determined the spheres were likely formed from ...

The Yellowstone region's Beartooth Mountains feature some of the most ancient rocks in North America — as old as 3.96 billion ...