Humans have been training telescopes on Mars for hundreds of years and gazing up at it for thousands. Despite the fact that ...

Together, orbiters and landers have provided scientists with data showing that Mars’ red color comes from rusted iron minerals within the dust that coats the planet. At some point, iron within ...

The water-rich iron mineral ferrihydrite may be the main culprit behind Mars's reddish dust, rather than the dry, rust-like ...

Most critically, there is an abundance of silica dust in addition to iron dust from basalt and nanophase iron, both of which are reactive to the lungs and can cause respiratory diseases.

Over billions of years this rusty material – iron oxide – has been eroded down into dust and spread all around the planet by winds, a process that continues today. Exciting new research ...

The red coloration comes from iron minerals in Mars’ dust—no surprise there. But a team of ESA and NASA scientists now think that Mars rusted earlier in its ancient past than previously known ...