00:00The Duga radar array constantly beams 10-megawatt pulses across the Atlantic.
00:05This colossal structure stands 150 meters tall,
00:09vibrating airwaves with rhythmic machine-gun tapping.
00:13Common Sense says this is a broadcast station, but it is actually a massive receiver.
00:19It bounced radio waves off the ionosphere to detect distant missile launches from across the globe.
00:25The interference was so loud that radios everywhere recorded the Duga radar array.