New images from the Mars Express spacecraft show ancient volcanic ash spreading across the Red Planet The wide strip of land in Utopia Planitia is imaged by Mars Express. The dark ...

64 million years ago, a Tyrannosaurus rex is hunting in what will one day become Montana. At the exact same time, millions of miles away on Mars, a volcano is erupting, sending rivers of glowing lava ...

New images released by the European Space Agency that were taken by its Mars Express orbiter show a rapid transformation ...

Six recruits are spending 365 days inside a tiny dome on a barren Hawaiian volcano to help NASA understand whether humans can ...

A new image shows a striking contrast between Mars' desert-like terrain against dark deposits of volcanic ash.

Olympus Mons, a shield volcano on Mars, is the largest volcano in the solar system, measuring approximately 370 miles in diameter and 26 kilometers in height. The formation of Olympus Mons and three ...

Noticeable change on Mars often takes millions of years—but the European Space Agency's Mars Express has captured a blanket ...

How did young volcanoes on Mars form? This is what a recent study published in the journal Geology hopes to address as a team of scientists investigated the complex geological processes responsible ...

Boulder, Colo., USA: What appears to be a single volcanic eruption is often the result of complex processes operating deep beneath the surface, where magma moves, evolves, and changes over long ...

The wide strip of land in Utopia Planitia imaged by Mars Express. The dark volcanic material is on the right, while grabens ...