In 1916, Einstein became the first to predict the existence of gravitational waves: the ringing sounds of spacetime generated by astrophysical calamities, like black hole collisions. Come listen to Janna Levin, one of the world?s most eminent theoretical astrophysicists and award-winning author, along with a few of her astro friends from Caltech discuss black holes, gravitational waves and the sounds of spacetime.
