The new study points to ferrihydrite as the culprit for Mars’ color. This is basically water-rich iron. So, the researchers think the planet was first covered in water for a decent amount of ...

Their ever-growing incisors have an additional outer layer of acid-resistant, iron-rich enamel. Previously, researchers suggested that this iron-rich material was also responsible for the striking ...

The color change is due to higher-than-normal levels of iron and manganese in the drinking water from natural processes occurring in two of Abilene’s water supply lakes, Hubbard Creek Reservoir ...