Crash Course Astronomy Preview

In this 46 episode series, Phil Plait (aka The Bad Astronomer) teaches you astronomy! *** Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZo Download here for Android Devices: https://bit.ly/2SrDulJ Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Catherine Conroy, Leonora Rossé Muñoz, John M Lee, Patty Laqua, Stephen Saar, Eric Prestemon, Sam Buck, Mark Brouwer, William McGraw, Siobhan Sabino, Mark W Billian, Jason Saslow, Jennifer Killen, Jon & Jennifer Smith, Jonathan Zbikowski, Shawn Arnold, Trevin Beattie, Matthew Curls, Khaled El Shalakany, Ian Dundore, Kenneth F Penttinen, Eric Koslow, Timothy J Kwist, Indika Siriwardena, Caleb Weeks, Zhu Junrong, HAIXIANGN/A LIU, Nathan Taylor, Alan Bridgeman, Andrei Krishkevich, Brian Thomas Gossett, SR Foxley, Alexander Thomson, Tom Trval, Justin Zingsheim, Brandon Westmoreland, dorsey, Jessica Wode, Nathan Catchings, Yasenia Cruz, Jirat -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids