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 ...

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 ...

Astronomers discovered 3I/ATLAS, a 10–20 km-wide interstellar comet racing into the solar system. It will reach perihelion in ...

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

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

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

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 ...

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

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

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