Now, a new study using data from NASA’s Curiosity Rover claims that sulfate layers on the Martian surface may have been hiding siderite—iron carbonate—from orbital survey missions.

Data from three of Curiosity rover's drill sites revealed the presence of siderite, an iron carbonate mineral, within the sulfate-rich rocky layers of Mount Sharp in Mars' Gale Crater, according ...

After drilling 257 m (843 ft) of hanging wall rocks, QGQ24-21 successfully intersected 53 m (174 ft) of continuous strong sericite - iron carbonate altered greenstones hosting an intense stockwork ...

Siderite is an iron carbonate mineral. Its presence in sedimentary rocks formed billions of years ago offers evidence that Mars once had a dense atmosphere rich in carbon dioxide, a gas that would ...

In Gale Crater, Curiosity found nearly pure crystalline siderite, an iron carbonate mineral, filling a gap in the previously low quantities of carbonates detected on Mars. The discovery suggests ...

His team found something unexpected: high concentrations of siderite, an iron carbonate mineral. These siderite deposits were significant—between 4.8% and 10.5% by weight—and mixed with layers ...

Was that potentially a reason we began to lose habitability?’ Discovering siderite, an iron carbonate mineral, took the scientists aback, given that satellites had never picked up on it before ...

Information recovered from three drill sites reveals the presence of siderite, an iron carbonate mineral. It was picked up within the sulfate-rich rocky layers of Mount Sharp in Mars’ Gale Crater.