Humans have been training telescopes on Mars for hundreds of years and gazing up at it for thousands. Despite the fact that ...

By combining observations from space and experiments on Earth, scientists rethink the red planet's history and why it's red.

Mars is widely known for its iconic rusty red color — many people even refer to it as just the "Red Planet" — but new ...

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

Results from a new study show that the water-rich iron mineral ferrihydrite may be the main pigment behind Mars’ reddish dust ...

The colour of Mars has been hotly debated over the years, as has whether there has ever been life on the planet ...

Seven planets will line up for a "planet parade" on Friday, Feb. 28, as Mercury lines up with Mars, Jupiter, Uranus, Neptune, ...

Explore the fascinating evolution of Mars atmosphere. Discover how it transformed, becoming trapped in its crust's clay ...

Mars – dusty, dry, and desert-clad – was once so rich in water it had not just lakes, but oceans, according to a new study.

Mars wasn’t always a dry, desolate world—it may have had sunlit beaches and rolling ocean waves, just like Earth. A new study ...

Mars may have once been a paradise with Earth-like oceans and balmy beaches that would have been ideal for harboring living ...