The black hole, V404 Cygni, was already known to be circled by a nearby star every 6.5 days. It is likely stripping this stellar companion of matter. (Image credit: NASA's Scientific Visualization ...

But astronomers said finding this new system – comprising a black hole named V404 Cygni and two stars – is “super exciting” ...

which only occurs in the final stages of a star's life. "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 could have ...

The team now believes that contrary to being born following a violent explosion of a dying star (a supernova), V404 Cygni was formed through a more gentle process some four billion years ago.

ABSTRACT The high orbital eccentricity of the planet around 16 Cygni B may have been induced by the companion star, 16 Cygni A, but only if the stellar binary has sufficiently small periastron ...

Astronomers have discovered a third star in the V404 Cygni system, now a rare triple black hole system 8,000 light-years away. This finding challenges existing black hole formation theories ...