It's a place so far out our minds twist and bend when trying to process the number: one billion light years away, in a constellation called Cygnus. The galaxy has at its core two black holes that ...

Now, according to a new paper in the journal Nature, the black hole V404 Cygnus has two stars orbiting around it at varying distances. This first-of-its-kind discovery could help unravel the ...

The system lies about 8,000 light-years from Earth in the constellation Cygnus ... could a black hole maintain its gravitational hold on a star so far away? According to conventional models ...

But this is the first known instance of a triple system with a black hole and two stars. This system is located about 7,800 light-years from Earth in the constellation Cygnus. A light-year is the ...

A "black hole triple" system has been discovered for the first time, scientists announced. Black holes have only been spotted on their own or in a binary until this discovery, with a single star ...