Sixty million years ago, when the Eurasian plate slammed into the Indian plate, a mountain range was born. Because these plates were of similar density, neither could sink below the other. The rocks ...

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 ...

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 ...

This week’s new questions What governs the maximum height of mountains on Earth? Could a mountain as high as Olympus Mons on Mars (21.9 kilometres, more than double the height of Everest) be possible ...

Astronomers have revealed dramatic new images of the largest volcano in the solar system. They show a crumpled feature at the base of Mars' Olympus Mons, resulting from an ancient catastrophic ...

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 ...