The black holes were the closest orbiting pair ever discovered.
They'e even predicting where the event is most likely to occur.
Scientists have theorized that passages through space-time can be traversed using a special quantum connection between two black holes.
How supermassive black holes formed so quickly after the start of the universe has long baffled scientists.
Object found hiding in a cloud of molecular gas believed to be an elusive type of black hole.
Scientists' observations could help us understand what could happen to our own galaxy in the future.
The ripples in space-time were first predicted by Einstein more than 100 years ago.
Floating gold and platinum cubes could record colliding universes right after the Big Bang.
Albert Einstein's prediction that gravitational waves exist was mere theory until this week.
"This [was] truly a scientific moon shot, and we landed on the moon."
The famous physicist presents his new thoughts on the "information paradox" of black holes.