The Duga Radar The Secret Spying Soviet Radar Next To Chernobyl
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Five Weird Nuclear Powered Machines
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Project 705 Lira: The Soviet Submarine That's Still the Fastest Ever Built
22:15
The SR-91 “Aurora”: The Plane that Doesn’t Exist…
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The World's Biggest Artillery Gun
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Mount Weather: The US Government’s Emergency Hideout
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Russian Woodpecker - The Radio Signal That Wreaked Havoc Around The World
22:22
Unsolved Space Mysteries
24:27