“Introduction to Astrophysics” S:1 E:20 Gravitational Waves

S:1 E:20 Gravitational Waves Investigate the physics of gravitational waves, a phenomenon predicted by Einstein and long thought to be undetectable. It took colliding black holes to generate gravitational waves that could be picked up by an experiment called LIGO on Earth, a billion light years away. This remarkable achievement won LIGO scientists the 2017 Nobel Prize in Physics.