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 ...

Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

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

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

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 ...

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

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

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 ...