Young Mars would have been a staggering place to explore. The Red Planet was covered in flowing rivers of both water and lava. At the time, a series of four volcanoes — Olympus Mons and the three ...

Scientists are positing that Mars’ giant Olympus Mons volcano, which is roughly the size of France, may once have been an island — a finding that could further the search for water and even signs of ...

Viking confirmed that Mars, like Venus and Earth, has volcanoes. This one, Olympus Mons, is the largest volcano in the solar system. It reaches 26 kilometers high — three times the height of Mount ...

Volcanic activity on Mars has existed in the past. The most recent was likely 50,000 years ago. Olympus Mons, the largest volcano on Mars, hasn’t shown signs of activity for 25 million years. Volcanic ...

The tallest mountain on Earth would look almost modest next to the giant that rises from the plains of Mars. Olympus Mons, a sprawling volcano in the planet’s western hemisphere, climbs to a height ...

A spacecraft has delivered fantastic images of Mars, showcasing textured terrain and a lone crater near the planet’s most famous landmark. Olympus Mons is the Solar System’s largest volcano. It’s so ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

The Martian volcano Olympus Mons is about three times the height of Mount Everest, but it's the small details that Rice University professors Patrick McGovern and Julia Morgan are looking at in ...

Young Mars would have been a staggering place to explore. The Red Planet was covered in flowing rivers of both water and lava. At the time, a series of four volcanoes — Olympus Mons and the three ...

In its latest postcard from Mars, the European Space Agency's Mars Express returns to Acheron Fossae: a dramatic network of chasms carved into the surface of the red planet. Studies of gravity ...