Brian Greene Explains The Discovery Of Gravitational Waves

A landmark day for Einstein and our understanding of the universe: the detection of gravitational waves. Brian Greene explains the discovery. Subscribe to our YouTube Channel for all the latest from WSF. Visit our Website: http://www.worldsciencefestival.com/ Like us on Facebook: https://www.facebook.com/worldscience... Follow us on twitter: https://twitter.com/WorldSciFest