In a nutshell NASA’s Curiosity rover discovered large deposits of siderite, a type of iron carbonate, in Gale Crater, ...

Findings could address a key mystery about Mars’s ancient past: How and when was the planet’s atmosphere thick enough to ...

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

Here’s the latest dirt on Mars. NASA’s trusty Curiosity rover, which has been exploring the so-called red planet for years, ...

Scientists have pondered why Mars seemed to be missing sufficient carbonates indicative of its warm, wet past. Now, NASA’s ...

A NASA rover taking rock samples on Mars has uncovered a plentiful mineral that was invisible to orbiters studying the Red ...

Scientists using NASA’s Curiosity rover have discovered siderite—an iron carbonate—in the sulfate-rich rocks of Gale Crater, ...

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

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

“The discovery of abundant siderite in Gale Crater represents both a surprising and important breakthrough in our understanding of the geologic and atmospheric evolution of Mars,” Benjamin Tutolo, ...

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