Learn more about the Curiosity's carbonate discovery on Mars, and what it tells of about Mars' past and Earth's future.

A new study led by a University of Calgary scientist has found evidence that suggests Mars once had a carbon cycle, giving ...

The siderite identified in Curiosity data helps confirm and refine models of Mars's early warm period, more than 3.5 billion ...

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

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

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

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

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

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