This is an iron oxide mineral that forms quickly in the presence of cool water, and scientists had previously thought that it ...

We all know Mars is called “The Red Planet,” but have you ever stopped to wonder—why is it red? The classic joke explanation ...

Toxic dust on Mars would make a future mission to the red planet extremely hazardous for astronauts and require significant ...

Mars' outer crust is 6 to 30 miles (10 to 50 km) thick and is composed mainly of iron, magnesium, aluminum, calcium and potassium, according to NASA. Below that is a rocky mantle that's 770 to ...

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 ...

Substances such as silica, gypsum, perchlorates and nanophase iron oxides contained in Martian dust could have life-threatening effects on members of a potential Mars mission, according to a study ...