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

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

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

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

An illustration shows the black hole of V404 Cygni feeding from a stellar victim as a more cautious star in the system keeps its distance. | Credit: NASA Astronomers have discovered the first ...

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.