Mars, one of our closest planetary neighbors, has fascinated people for hundreds of years, partly because it is so similar to ...

A new study suggests that Mars may have once had an active carbon cycle, which could explain why the planet was warmer and ...

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

Billions of years ago, Mars was warm, wet, and capable of sustaining liquid water on its surface. Scientists have long believed the Red Planet once had a dense atmosphere rich in carbon dioxide (CO₂), ...

NASA's Curiosity rover has uncovered evidence of a past carbon cycle on Mars. This breakthrough provides scientists with new ...

The ocean plays a large role in cycling carbon dioxide in the atmosphere. Determining how much carbon is locked away in the ...

Glaciers worldwide are archives of human pollution, preserving carbon from fossil fuels and wildfires in their ice for ...

The result: a world similar to the one that existed around 2.5 billion years ago – before the so-called “Great Oxidation ...