A mineral called siderite found abundantly in rock drilled by a NASA rover on the surface of Mars is providing fresh evidence of the planet's warmer and wetter ancient past when it boasted ...

A NASA rover taking rock samples on Mars has uncovered a plentiful mineral that was invisible to orbiters studying the Red Planet from space. Scientists say the discovery of siderite, a type of ...

Tutolo says. Now, the Curiosity rover has found a carbonate mineral called siderite on a mountain in the ancient lakebed in the Gale crater. “We found it here, for the first time,” Tutolo says.

Scientists have pondered why Mars seemed to be missing sufficient carbonates indicative of its warm, wet past. Now, NASA’s Curiosity rover may have just solved the mystery.

NASA’s Curiosity Mars rover sees its tracks receding into the distance at the 'Ubajara' site. This site is where the rover made the discovery of siderite, a mineral that may help explain the ...

No siderite in some ancient soils therefore implied lower levels of carbon dioxide. Ohmoto and his associates, however, looked at four, rather than one, parameters involved in siderite formation.

WASHINGTON — A mineral called siderite found abundantly in rock drilled by a NASA rover on the surface of Mars is providing fresh evidence of the planet's warmer and wetter ancient past when it ...