Remember the fiery X-51's scramjet test that looked like hell? This is the final aircraft—the Waverider—ready for its maiden flight. It'll fly at Mach 6 for 300 seconds. So fast that its nose will reach 2696º Fahrenheit.
This is one of the coolest demonstrations ever: NASA's new Common Extensible Cryogenic Engine for the lunar lander gets icicles on its rim while burning at 5,000 degrees Fahrenheit. How is this feat possible?