A big mystery is why the ridges were hardened into these big patterns and why only here,” said Ashwin Vasavada, project scientist for the NASA Curiosity rover, following the mission publishing the ...

Scientists had hypothesized before the rover arrived that the peculiar ridges formed with the last trickles of water in the ...

“Sulphate minerals exist with different amounts of water in most regions on Mars and allow us to understand how water moved around the planet, which is key to understanding its past habitability ...

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 ...

But only evaporation would lead to highly pure siderite forming in the same geologic layer as the sulfate minerals the team identified, gypsum and starkeyite. Atmospheric CO 2 must have dissolved ...

“Sulphate minerals exist with different amounts of water in most regions on Mars and allow us to understand how water moved around the planet, which is key to understanding its past habitability ...