Astronomers manning an asteroid warning system caught a glimpse of a large, bright object zipping through the solar system ...

Scientists have observed a new type of black hole that is too heavy to have been born from a star but still too slim to … The ...

Long theorized but never observed, the first known “planet with a death wish” is described by Ilin and her colleagues in a ...

We live in a world defined by inches, feet and miles (or centimeters, meters and kilometers, if you prefer), and it’s not difficult for most of us to ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

The explosion of a star, called a supernova, is an immensely violent event. It usually involves a star more than eight times ...

"This tangible evidence of a double detonation not only contributes towards solving a long-standing mystery, but also offers ...

Astrophysicist Josep Trigo-Rodriguez of the Institute of Space Sciences near Barcelona, Spain, believes it is an interstellar ...

A NASA satellite that’s been orbiting as space junk since 1967, Relay 2, emitted an unexpected, powerful radio burst that ...

Astronomers have finally caught a dying star in space going out with a bang — and then another bang. The new photographic ...

New observations show a star that blew up in two separate bursts, confirming a long-suspected cosmic phenomenon called a ...

"We have discovered a galaxy that has been 'perfectly preserved' for billions of years, a true archaeological find that tells ...