While scouring a 50-million-year-old crater on Mars, the Curiosity rover stumbled upon a polygon-shaped pattern that sort of looks like a giant reptile had shed its skin across the planet’s surface.

Imagine watching a massive star that's been burning steadily for millions of years suddenly dim, fluctuate, and then vanish completely from the night sky. This isn't science fiction. It's happening ...

Watch as NASA’s Mars Reconnaissance Orbiter captures rare 4K views of the planet’s polar regions, revealing patterns and formations unlike anything seen elsewhere on Mars. The images show layered ice, ...