NASA’s Curiosity rover has uncovered a missing piece in the puzzle of Mars' past atmosphere. Scientists discovered ...

What’s more, they were found alongside salts that dissolve easily in water — a sign that liquid H2O was likely flowing during formation. Carbonate minerals form when carbon dioxide reacts with ...

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

Billions of years ago, Mars was warm, wet, and capable of sustaining liquid water on its surface. Scientists have long ...

Scientists are eager to find out whether Mars was once capable of supporting life, and according to new Curiosity findings, ...

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

A new hypothesis from SETI Institute scientist Dr. Janice Bishop and Dr. Melissa Lane from Fibernetics in Pennsylvania could ...