Today marks 65 years since the first powered flight of the X-15 rocket-powered aircraft, flown by test pilot Scott Crossfield. In the 9-minute flight, Crossfield reached a speed of Mach 2.11, or 1,393 miles per hour, and an altitude of 52,341 feet. The three X-15s went on to fly a total of 199 times over nine years, setting speed and altitude records, and contributing to NASA's human spaceflight programs! 📘 More about this historic flight: https://go.nasa.gov/3XMcJdY | NASA History

1.2M views · 4.8K reactions | The North American X-15 was a rocket-powered aircraft that flew at hypersonic speeds and almost achieved spaceflight. | Sunday Roast | Facebook

4.5K views · 58 reactions | The X-15: 1960-1980 | NASA 1980...