Secret History of Mercury | How the Universe Works (Full Episode)

Mercury is a deadly world, facing attacks from the Sun, comets, and other planets, and even though it's the smallest planet in our solar system, it has a dangerous secret that might one day threaten life on Earth. 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