Hypersonic Sled Travels at 6,599 mph - Secret Test Site

In the middle of the night in the New Mexico desert, a strange object moves far beyond the threshold of hypersonic speeds, rocketing along a 10-mile track in mere seconds. While hard to make out even at half the speed, the item seen in the unique footage is a sled, part of the United States Air Force’s latest developments in defense technology. The secretive tests, carried out in recent years and even breaking a few world records, have left even the most clever web sleuths pondering what the technology behind the experiments could be. With Pentagon officials racing to get their hands on any kind of hypersonic weapons, it is unquestionable that the tests in the footage are no coincidence and even part of a much bigger endeavor… --- Dark Footage showcases the most unbelievable photos and videos from history while telling the stories behind the camera. Featuring military, space, aircraft and real-life historic events caught on tape.