Massive stars about eight times more massive than the sun explode as supernovae at the end of their lives. The explosions, ...

At the heart of this cosmic revelation lies Palomar 5, a stellar stream stretching across 30,000 light-years of space.

The outward force from its fusion can no longer counteract the star's powerful gravity, and the star collapses in on itself.

Astronomers have discovered a supermassive black hole in a distant galaxy that is defying conventional understanding. Growing ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Stellar-mass black holes ...

The black hole’s mass is over half that of all the stars in the surrounding galaxy, a record for any galaxy hosting a quasar.

Now, researchers using NASA's Imaging X-ray Polarimetry Explorer (IXPE) have gathered data about 12 known black holes to determine the structural properties of accretion disks around different sized ...

Packing all of that bulk—many times the mass of our own sun—into such a tiny point gives black holes their powerful gravitational pull. Thousands of these stellar-mass black holes may lurk ...

There's evidence out there for the supernova model of black hole formation. This is when a dying star erupts in a colossal ...

The phenomenon defies our current understanding of stellar evolution. The research was led ... In M31-2014-DS1's case, the neutrino shock wasn't revived and about 98% of its mass collapsed into a ...

Stellar-mass black holes typically form after a star goes supernova and collapses. However, the discovery of the first-ever triple black hole system, V404 Cygni, complicates that picture.