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While potentially dangerous, nuclear powered spacecraft offer far faster and more efficient spacecraft than traditional chemical rockets. Today we will examine the various means of using atomic power sources to propel spacecraft, both to get off Earth and to travel to other stars. See more of Fragomatik's animations: https://www.youtube.com/user/fragomatik Visit Winchell Chung's Atomic Rockets: http://www.projectrho.com/public_html/rocket/index.php Visit our Website: http://www.isaacarthur.net Join the Facebook Group: https://www.facebook.com/groups/1583992725237264/ Support the Channel on Patreon: https://www.patreon.com/IsaacArthur Visit the sub-reddit: https://www.reddit.com/r/IsaacArthur/ Listen or Download the audio of this episode from Soundcloud: https://soundcloud.com/isaac-arthur-148927746/the-nuclear-option Cover Art by Jakub Grygier: https://www.artstation.com/artist/jakub_grygier Music by: Sergey Cheremisinov, "Sirius" Kai Engel, "Endless Story about Sun and Moon" Koalips, "Kvazar" Frank Dorittke, "Morninglight" Kai Engel, "December" Kevin MacLeod, "Spacial Winds" Lombus, "Amino"