The fundamental question of why Mars is red has been considered for hundreds if not for thousands of years,” Adam Valantinas, ...

The first thing most people think of when they consider Mars is its deep red color. The Romans associated the planet with their god of war because it reminded them of blood while the ...

The story of the red planet, it turns out, may be due for a revision. At one time, experts thought that Mars was covered with fields of rocks with iron trapped inside. Somehow or other, and over a ...

For decades, scientists believed that Mars’ red color came from hematite, a type of iron oxide that forms under dry ...

A new study conducted using existing data on Mars points to ferrihydrite, a substance that forms in the presence of water, ...

Mars is famous for its red hue, which comes from rusted iron minerals in its dust. These minerals are formed when iron reacts with water or oxygen, just like rust on Earth.

Billions of years ago, however, liquid water flowed freely across the planet. And ... Within the marker band itself — a thin, dark layer of rock — scientists recognized wave ripples in ...