Cosmic Game of Risk | How the Universe Works
submitted by pkamweru
on 09/05/15
1
The universe began with an epic battle between matter and antimatter. | For more How the Universe Works, visit science.discovery.com/tv-shows/how-the-universe-works/#mkcpgn=ytsci1 Subscribe to Science Channel! | www.youtube.com/subscription_center?add_user=sciencechannel
