Soviet astronaut Yuri Gagarin was the first human being in space -- at least, officially. Could the Soviet government have destroyed evidence of other, less successful space missions? Tune in to learn more about lost cosmonaut conspiracy theories. Subscribe | bit.ly/stdwytk-sub The Rabbit Hole | bit.ly/stdwytk-home Audio Podcast | bit.ly/stdwytk-audio-itunes Follow us | bit.ly/stdwytk-twitter Like us | bit.ly/stdwytk-fb Here are the facts. Join Ben and Matt to learn the Stuff They Don't Want You To Know about everything from ancient history to UFOs, government secrets, and the future of civilization. Here's where it gets crazy. New videos every Monday, Wednesday and Friday. Visit our Mothership: bit.ly/stdwytk-hsw-home Feed your brain: bit.ly/stdwytk-brainstuff-home Our big brothers: bit.ly/stdwytk-sysk-home Blow your mind: bit.ly/stdwytk-stbym-home History class: bit.ly/stdwytk-symhc-home Your mom: bit.ly/stdwytk-smnty-home