Noticeable change on Mars often takes millions of years—but the European Space Agency's Mars Express has captured a blanket of dark ash creeping across the planet in just decades. A new image from ...

For half a century, something has been darkening one of the largest plains on Mars. The European Space Agency revealed in April 2026 that a comparison between a fresh photograph from its Mars Express ...

Incoming views of Mars usually show its dusty, tan-colored surface littered with rocks, a familiar desert-like world that has looked more or less the same for millions of years. However, a new image ...