Earth Has an Expiration Date

The sun has been growing hotter ever since its birth. Over time, the sun will also grow larger. This growth will eventually cause a cataclysmic greenhouse event as the Earth moves further out of the sun s habitable zone. Once this happens, oceans that have existed on Earth for billions of years could evaporate in as little as ten thousand. | http://science.discovery.com/tv-shows/how-the-universe-works/ Catch new episodes of HOW THE UNIVERSE WORKS Tuesdays at 10/9c on Science! Watch full episodes: http://bit.ly/HTUWFullEpisodes Subscribe to Science Channel: http://www.youtube.com/subscription_center?add_user=sciencechannel Check out SCI2 for infinitely awesome science videos. Every day. http://bit.ly/SCI2YT Download the TestTube app: http://testu.be/1ndmmMq