We have red rocks and dust on Earth, for instance in Canyonlands National Park in Utah, or the Grand Canyon in Arizona. "The rust-colored grains within rock likely contain minerals made up of iron ...

Over billions of years, the iron in the planet’s rocks has reacted with ... has always explained why Mars is so red. But the exact nature of these minerals — and what they reveal about Mars ...

Rocks loafing about on the surface of Mars have been harboring secrets about the red planet's mysterious past.

A study suggests Mars takes its red hue from a type of mineral that forms in cool water, which could reveal insights about whether Mars was ever able to support life.

The merry month of May used to be an outlier on the Red Rocks Amphitheatre calendar, and any artist that dared book past September tempted the wrath of show-stopping cold and snow. These days ...

We have red rocks and dust on Earth ... We found that ferrihydrite mixed with basalt, a volcanic rock, best fits the minerals seen by spacecraft at Mars,” lead author Adomas Valantinas, a ...