What Happened Before the Big Bang?

PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE↓ More info below ↓Uploaded 19-08-19Check out the new Space Time Merch Store!https://pbsspacetime.com/Support Space Time on Patreonhttps://www.patreon.com/pbsspacetimeWe actually have a pretty good idea of what might have happened before the Big Bang. That is, as long as we define the Big Bang as the extremely hot, dense, rapidly expanding universe that is described by Einstein’s equations. That picture of the universe is very solid down to about a trillionth of a second after the supposed beginning of time. We can make good guesses down to about 10^-30th of a second. But before that? Hosted by Matt O'DowdWritten by Matt O'DowdGraphics by Leonardo ScholzerDirected by Andrew KornhaberProduced By: Kornhaber BrownCheck out the Big Bang and Cosmic Inflation Playlist to learn Morehttps://www.youtube.com/watch?v=aPStj2ZuXug&list=PLsPUh22kYmNCc3WCKb5yF136QSRf0xErmWant Even More Great Space Content? Check out the Exciting STELLAR Playlist https://www.youtube.com/playlist?list=PL1mtdjDVOoOqY7QPHGa9OppO_pjf91lbVBig Bang Supporters:Alexander TamasAnton LifshitsDavid NicklasFabrice EapJuan BenetMorgan HoughQuasar Supporters:Mark HeisingMark RosenthalVinnie FalcoHypernova Supporters:Chuck ZegarDanton SpiveyDonal BotkinEdmund FokschanerHank SJohn HofmannJohn R.