Researchers have discovered something groundbreaking in the world of astrophysics—an incredible system where not one, but a ...

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

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A third, tenuously held companion to the known binary V404 Cygni may signal that at least some black holes form "gently." ...

An artist's impression shows a triple star system called V404 Cygni with a black hole and two ordinary stars. Material ...

An artist's rendition of the black hole X-ray binary V404 Cygni. This is the first time a black hole triple has been discovered. An artist's rendition of the black hole X-ray binary V404 Cygni.

But astronomers said finding this new system – comprising a black hole named V404 Cygni and two stars – is “super exciting” because it raises the possibility there may be more of these out ...

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. This black ...

The system, called V404 Cygni, was thought to be a black hole and a companion star, but a second star billions of kilometres away was also found to be gravitationally connected to the duo.