The Missing Mass Mystery

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 25-10-17For years, astronomers have been unable to find up to half of the baryonic matter in the universe. We may just have solved this problem. You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time t­shirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail [dot] comComment on Reddit: http://www.reddit.com/r/pbsspacetimeHelp translate our videos!https://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7gPrevious Episode:The Nature of Nothing | Space Timehttps://www.youtube.com/watch?v=X5rAGfjPSWE&t=55sDark Matter!https://youtu.be/z3rgl-_a5C0Dark Energy Playlisthttps://youtu.be/xZTb6sfHEX8?list=PLsPUh22kYmNA6WUmOsEEi32zi_RdSUF4iWe’ve known for some time that around 95% of the energy content of the universe is in dark matter and dark energy. This dark sector doesn’t interact with light in any way and so is invisible to us. The remaining 5% - the light sector – represents all of the regular matter in the universe. Yet what if I told you that all of the stars and galaxies and galaxy clusters only comprise 10% of the light sector. The rest has proved as elusive as the dark sector. We think it must exist as extremely diffuse gas in between the galaxies, yet our intense searches miss up to half of it. At least until now.ResourcesGraaff et al. 2017, "Missing Baryons in the Cosmic Web Revealed by the Sunyaev-Zel'dovich Effect"https://arxiv.org/abs/1709.10378v1Tanimura et al. 2017, "A Search for Warm/Hot Gas Filaments Between Pairs of SDSS Luminous Red Galaxies"https://arxiv.org/abs/1709.05024Written and Hosted by Matt O'DowdProduced by Rusty WardGraphics by Kurt RossAssistant Editing and Sound Design by Mike PetrowMade by Kornhaber Brown (www.kornhaberbrown.com)Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big BangBITISMCoolAsCatsDavid NicklasRichard SenegorQuasarTambe BarsbayMayank M.