Astronomers once struggled to measure the true size of the universe. Then came the discovery of Type Ia supernovae — ...

Researchers have detected a gamma-ray burst outside of the Milky Way that's unlike any previously observed. There's no satisfying explanation for the mysterious cosmic explosion, but it may be linked ...

Two Russian surveillance satellites are "pursuing" satellites used by Germany's armed forces. The German defence minister, ...

There are signs deep beneath the Pacific Ocean that an exploding star once sent cosmic rays blasting out towards Earth, and ...

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...

Utah State University's Space Dynamics Laboratory has released open-source software to detect potentially harmful shooting ...

Asteroid 2024 YR4 caused quite a stir last year when it was discovered and originally calculated to have a 3 percent chance of hitting Earth.

Australia's SpIRIT nanosatellite has successfully completed the initial phase of its mission, marking a milestone achievement ...

A NASA mission, IMAP, and two more spacecraft that will study space weather are traveling through space atop a single SpaceX ...

A cosmic spectacle predicted by Stephen Hawking may be on the horizon as scientists warn of a black hole poised to explode.