Crash Course Astronomy

Crash Course Astronomy

A Brief History of the Universe (1x44)


Air date: Jan 07, 2016

Thanks to the wonders of physics, astronomers can map a timeline of the universe’s history. Today, Phil’s going to give you an overview of those first few minutes (yes, MINUTES) of the universe’s life. It started with a Big Bang, when the Universe was incredibly dense and hot. It expanded and cooled, going through multiple stages where different kinds of matter could form. It underwent a phenomenally rapid expansion called inflation, which smoothed out much of the lumpiness in the matter. Normal matter formed atoms between 3 and 20 minutes after the bang, and the lumps left over from inflation formed the galaxies and larger structures we see today.

  • Premiered: Jan 2015
  • Episodes: 46
  • Followers: 4
  • Ended
  • YouTube
  • Thursday at 17