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 ...

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

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 ...

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

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

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

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

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

Dennis Mammana Stargazers 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 comprehend sizes and ...