Scientists once believed our planetary next-door neighbor got its rusty hue from hematite, a common iron ore known for its ...

That is, assuming exposure to atmospheric oxygen created the red hue. Iron in a ferrihydrite form suggests the need for water over a longer period of time in order to create that rich, orange-red hue.

With its iconic rusty hue, Mars has long been called the red planet. Now, scientists may have discovered the potential source of that distinctive coloring, overturning a popular theory in the ...

WHYALLA, Australia - For more than a century, Australia has fed the world’s hunger for iron ore. Vast swaths of the rusty red Outback have been dug up and delivered overseas to make the steel ...