What Happened to Planet X

Where did Planet X go Neil deGrasse Tyson and comedian Chuck Nice break down the case of Planet X and whether there could be more planets lurking in our solar system. Learn about the history of discovering planets and why it lead scientists to believe in a Planet X. Discover how a prediction lead to finding Neptune and Pluto. When did the idea of Planet X go away Is there still a chance that there is an unknown planet orbiting in the darkness of our outer solar system Check out our second channel, StarTalkPlus Get the NEW StarTalk book, To Infinity and Beyond: A Journey of Cosmic Discovery on Amazon: Support us on Patreon: FOLLOW or SUBSCRIBE to StarTalk: Twitter: Facebook: Instagram: About StarTalk: Science meets pop culture on StarTalk Astrophysicist Hayden Planetar br, br,