Physicists Detect Gravitational Waves, Proving Einstein Right
> And then the ringing stopped as the two holes coalesced into a single black hole, a trapdoor in space with the equivalent mass of 62 suns. All in a fifth of a second, Earth time.Am I reading this correctly, that shortly after the detector came online we just happened to observe the exact moment a billion years ago that two black holes collided?Was that extremely coincidental? Or do these events happen all the time, and so if it wasn't those two black holes it would be two others?