This 32-second video taken on April 26, 1968 shows the X-15 hypersonic aircraft approaching and landing on Rogers Dry Lake at Edwards Air Force Base in California’s Mojave Desert.
In the joint X-15 hypersonic research program that NASA conducted with the Air Force, the Navy, and North American Aviation, Inc., the aircraft flew over a period of nearly 10 years and set the world’s unofficial speed and altitude records of 4,520 mph (Mach 6.7) and 354,200 feet in a program to investigate all aspects of pilot
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