Mars, the fourth planet from the sun, is a dry, rocky world. Its famous red color has earned it the nickname the Red Planet. Mars has fascinated people throughout history, and today, it is one of ...

The red planet Mars, named for the Roman god of war, has long been an omen in the night sky. And in its own way, the planet’s rusty red surface tells a story of destruction. Billions of years ...

This image, taken by Curiosity, shows a selfie in front of Mont Mercou, a 20-foot-tall rock formation on Mars. This image, captured by the HiRISE camera, shows a bear-like face on Mars, formed by ...