Mystery of Spacetime | How the Universe Works (Full Episode)

Spacetime is the secret structure that controls our universe, and this strange four-dimensional substance controls time, light, and energy. It will also determine how our universe will end. Stream Full Episodes of How the Universe Works: https://www.sciencechannel.com/tv-shows/how-the-universe-works/ Subscribe to Science Channel: http://bit.ly/SubscribeScience Like us on Facebook: https://www.facebook.com/ScienceChannel Follow us on Twitter: https://twitter.com/ScienceChannel Follow us on Instagram: https://www.instagram.com/ScienceChannel/ #StayHome