"SpaceShipTwo, welcome to space," the company tweeted during live coverage of the flight from the Mojave Air and Space Port in California. The space claim is a bit of a gray area.
SpaceShipTwo, named the VSS Unity, hitched a ride on Virgin Galactic's WhiteKnightTwo aircraft before separating and taking off under its own power. The winged spaceship reached 51.4 miles (82.7 kilometers) above the surface of Earth and achieved a speed of Mach 2.9. The rocket motor burned for 60 seconds.
NASA says space starts at roughly 62 miles (100 kilometers) above sea level, but SpaceShipTwo's pilots likely experienced microgravity during the journey.
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