In a special edition of Space Boffins, Richard Hollingham meets a man rarer than a Moonwalker - a spy satellite engineer. Phil Pressel led the team that built the camera for the Hexagon spy satellite system - the most complicated satellite ever launched. Hexagon took pictures on 30 miles of film and returned it to Earth in cannisters, which were captured by aircraft. The interview includes revelations about the capabilities of the satellite, secrecy and Phil's incredible upbringing. Did spy satellites help prevent World War 3? You decide Like this podcast? Please help us by supporting the Naked Scientists

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