The National Interest on MSN2d
The X-15 was a Starfighter in All But Name
The X-15 was a key bridge between conventional atmospheric flight and spaceflight. The North American X-15 is one of the most ...
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From X-15 to The Moon: Edge of Space Short Film
It made the first manned flights to the edges of space and became the world's first piloted aircraft to reach hypersonic speeds, exceeding five times the speed of sound. The X-15 program was a ...