Scientists using NASA’s Curiosity rover have discovered siderite—an iron carbonate—in the sulfate-rich rocks of Gale Crater, ...

NASA's Perseverance rover has revealed new clues about Mars' volcanic past. While most people searching for signs of alien ...

NASA's Curiosity rover landed on Mars on Aug. 5, 2012, and has travelled more than 34 kilometres on the Martian surface. The discovery of carbonate suggests that the atmosphere contained enough carbon ...

Tutolo led a new study of rock samples collected by the Curiosity rover that might have answered this question. The mystery ...

In those drill sites, Curiosity detected deposits containing an iron carbonate material called siderite. According to Ben ...

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

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

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

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

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

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

Clouds of water ice can be seen drifting over ancient volcanoes on Mars. But billions of years ago, the surface was more temperate. Rock samples could tell us whether it supported ancient life.