"Far from our galaxy, in the vast darkness of space, two massive black holes merged into a single, larger hole. And now researchers say they have detected rumblings from that cataclysmic collision as ripples in the very fabric of space-time itself. The discovery comes a century after Albert Einstein first predicted such ripples should exist." Read more from the NPR article here:

http://www.npr.org/sections/thetwo-way/2016/02/11/466286219/in-milestone-scientists-detect-waves-in-space-time-as-black-holes-collide