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

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

making up between 5% and 10% of the rock samples. For siderite to form, you need liquid water, carbon dioxide, and the right chemical conditions. These are all essential ingredients for a ...

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

Today, Mars is very cold and dry, with little atmosphere and no liquid water on the surface ... Carbonate minerals contain carbon dioxide, which, when present in the atmosphere, warms a planet.

“The discovery of abundant siderite in Gale Crater represents both a surprising and important breakthrough in our ...