Snow dots the Martian landscape in these images from ESA's Mars Express orbiter and NASA's Mars Reconnaissance Orbiter.

Skywatchers across the United States witnessed a total solar eclipse, SpaceX caught a giant rocket out of mid-air with a pair ...

In the new photographic collection Our Frozen Planet, Michael Hambrey and Jürg Alean set out to celebrate the world's ice in ...

An international team of astronomers has reported the discovery of two exoplanets orbiting a nearby star known as HD 101581.

Scientists have identified a star system 100 light years away from Earth, similar to the model planetary ... a rare cosmic ...

NASA's Juno spacecraft zipped just 930 miles (1,500 kilometers) above the volcanic world Io in 2024. The extraterrestrial ...