Iron, a key material in steel and other applications, is most often found in hematite and magnetite ores, though goethite, limonite and siderite ores are also common sources of iron ore.

Findings suggested that the Red Planet got its color from ferrihydrite, a form of iron oxide that needs water to form, rather than hematite — which is what’s been long thought as the reason be ...

Mars has fascinated people for centuries, not only because it is our closest neighbor in space but also because of its ...

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