By discovering carbonate rocks, NASA's Mars rovers may have unlocked the key to understanding the fate of the Red Planet's ...

Under the dense atmosphere of early Mars, carbon dioxide could have liquefied and plausibly flowed across the Red Planet, carving its surface in ways similar to water.

New discoveries by NASA's Curiosity Mars rover may not only explain why the Red Planet is a dry, lifeless desert, but that it ...

As a geochemist and astrobiologist who has studied Mars for more than 15 years, I am fascinated by Mars' past and the idea that it could have been habitable. Ancient carbon cycle on past Mars ...

Now, NASA researchers have managed to recreate these structures in a lab for the first time, demonstrating how they form in ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Elisabeth M. Hausrath, University of Nevada, Las Vegas (THE CONVERSATION) Mars ...

The model Kite’s team built was unique in that it captured evolution of the Martian landscape and climate over an extremely ...

Without enough liquid water on the surface, a planet's atmosphere can become choked with carbon dioxide, raising temperatures ...

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 ...

NASA’s Curiosity rover has found rocks rich in carbonate minerals. These minerals are like Earth’s limestone and act as sponges, pulling carbon dioxide from the atmosphere and locking it into stone.

Reduced carbon released from powder from this drill hole was strongly depleted in carbon 13, the surprising carbon isotopic signature reported by the team. The selfie is composed of 57 individual ...

Another possibility is liquid carbon dioxide. Under the dense atmosphere of early Mars, carbon dioxide could have liquefied and plausibly flowed across the Red Planet, carving its surface in ways ...