Primordial black holes may be lurking throughout our universe. How large are they, how many are out there and what would happen if they moved through our solar system? To learn more about black holes, gravity and so much more check out The Great Courses Plus by going to http://ow.ly/JqPz30491TL Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! null Scientists believe that many black holes may have been created at the time of the Big Bang and and are still roaming our universe today. If we found them they would tell us a great deal about the origins of the cosmos. Previous Episode https://www.youtube.com/watch?v=BAoEnV3Zt_Q How to Build a Black Hole https://www.youtube.com/watch?v=xx4562gesw0 Do Events Inside Black Holes Happen? https://www.youtube.com/watch?v=vNaEBbFbvcY Written and hosted by Matt O’Dowd Produced by Rusty Ward Made by Kornhaber Brown (www.kornhaberbrown.com) Comments answered by Matt: Parameth Ratnasakha https://www.youtube.com/channel/UCgJt6aIeNjKjG5lD9OH75Eg Turcan Fred https://www.youtube.com/channel/UC_gBta_f1xA4bPsdWVoMerg Leonidas Pereira https://www.youtube.com/channel/UC5JxQoYgHYrfttfKipfP5rQ ZombieWelder https://www.youtube.com/channel/UCKsvZzjVBZ5PVhvhU4vMAbg Goodsire null Arduenn Schwartzman null