The Curiosity rover identified hidden caches of the mineral siderite, which could help explain why Mars lost its habitable climate.

To study Mars’s chemical and mineral makeup, the Curiosity rover drills one to 1.5 inches down into the subsurface, then ...

Perseverance explores Jezero Crater’s rim, uncovering diverse rocks that reveal Mars’ ancient geology and possible signs of ...

Mars' magnetic mystery may finally have a solution—scientists now think the Red Planet’s ancient magnetic field only existed ...

A new study analyzing data from NASA's Perseverance rover has uncovered compelling evidence of multiple mineral-forming events just beneath the Martian surface -- findings that bring scientists one ...

Billions of years ago, Mars was warmer and wetter than today, perhaps because volcanoes belched enough carbon dioxide to ...

Samples drilled by the Curiosity rover on Mars have revealed abundant signs of a carbon cycle that remained hidden from ...