How Betelgeuse Will Explode | How the Universe Works

Supernovas are the dramatic death of giant stars. Their explosions outshine all the stars in a galaxy, and the last minutes of their life are the most energetic and the most cataclysmic events that we see in the universe. 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/