Astronomers watched a distant star dim for months and found a metal-rich cloud that may be the aftermath of a massive ...

Auroras occur when solar wind collides with Earth’s magnetic field, creating dazzling lights. Learn why auroras appear in red ...

A collision between Earth and another planet would not be dramatic in the movie sense. It would be immediate, violent, and final. The energy released would melt the crust, boil the oceans, and strip ...

Astrophysicists are warning that low Earth orbit is reaching a critical tipping point, where satellite collisions could happen faster than previously imagined. A new metric, the ...

It's a pretty spectacular sight to see when space debris re-enters the earth's atmosphere. The incredible friction from the speed of the craft colliding with air molecules turns it into thermal energy ...

An exoplanet called HD 137010 b might be the closest thing astronomers have ever seen to “Earth 2.0.” The trouble is that ...

Aurora alert! The colossal solar storm could impact and trigger impressive northern lights.

Astronomers have discovered powerful magnetic fields steering gas, dust, and star formation in a dramatic galaxy merger.

Earth's magnetic field was struck by a "severe" solar storm Monday (Jan. 19), triggering vibrant auroras in the U.S. and ...

Add Yahoo as a preferred source to see more of our stories on Google. Saturn and the moon are about to meet up for a short-lived cosmic hangout. That's good news for avid skygazers, who will in one ...

Choose your fighter for the origin of water on Earth! Was it always here or did it come to this planet from somewhere else in space? And, either way, what does this mean for other water worlds in our ...