An international team of astronomers has uncovered a striking cosmic anomaly. A feeding black hole has been detected roaming ...

Astronomer and Pluto mission leader S. Alan Stern explores how the field has transformed during his decades-long career.

A dazzling bolt of radio light from across intergalactic space is the most powerful of its kind seen to date – and its ...

What was the universe like in the first few hundreds of millions of years after it came into existence? How did the first ...

Scientists have discovered a gamma ray explosion outside our galaxy that's not only exceptionally powerful, but also ...

A successful builder by day and traversing the sky by night, Isaac Roberts took the first clear photograph of Andromeda, the closest galaxy to our Milky Way.