This episode of Liftoff is sponsored by:

Links and Show Notes Liftoff - Relay FM Liftoff (@liftoffpodcast) | Twitter Baikonur Cosmodrome - Wikipedia, the free encyclopedia About the Space theme — Hair-Breened Ideas Remixing Chris Breen's beautiful 'Space Theme' podcast music — Keith Bradnam NASA technologies star in One Direction's music video NASA — Tour NASA with One Direction One Direction - Drag Me Down - YouTube Why Do We Only See One Side of the Moon? - YouTube

The "adorable" video of how the moon's axis and orbit mean we only ever see one side of it.

The Moon And Tides Theia (planet) - Wikipedia, the free encyclopedia

The Mars-sized object that (maybe) smashed into Earth to help form the moon.

Far side of the Moon - Wikipedia, the free encyclopedia Chandrayaan-1 - Wikipedia, the free encyclopedia List of missions to the Moon - Wikipedia, the free encyclopedia List of proposed missions to the Moon - Wikipedia, the free encyclopedia Mining the Moon | MIT Technology Review Apollo 13: James Lovell, Jeffrey Kluger: 9780618619580: Amazon.com: Books A Man on the Moon: The Voyages of the Apollo Astronauts: Andrew Chaikin, Tom Hanks: 9780143112358: Amazon.com: Books Apollo 13 (1995) - IMDb From the Earth to the Moon (TV Mini-Series 1998) - IMDb Seveneves: A Novel: Neal Stephenson: 9780062190376: Amazon.com: Books Inherit the Stars by James P. Hogan - Baen Books Moon (2009) - IMDb 2001: A Space Odyssey (1968) - IMDb