![](https://astro.umaine.edu/wp-content/uploads/sites/165/2019/08/einsteins_gravity_playlist_16x9.jpg)
Einstein’s Gravity Playlist
What are gravitational waves? How are these ripples in space-time created? Albert Einstein predicted there existence in 1916, and a century later, scientists detected these waves using incredibly precise laser technology here on Earth. See the Laser Interferometer Gravitational-Wave Observatory (LIGO) and Lucia, a PhD student in physics, on an exploration of gravitational waves and their importance in helping understand the universe.