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 ...

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

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

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 ...

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

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 ...

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