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 ...

"We've never been able to do this before for an old black hole," Burdge said. "Now we know V404 Cygni is part of a triple, it ...

Create a Physics World account to get access to all available digital issues of the monthly magazine. Your Physics World ...

Artist's impression shows a triple star system called V404 Cygni with a black hole and two ordinary stars. (photo credit: ...

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 ...

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.