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Virgin Galactic spacecraft smashes altitude record in last test flight



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Virgin Galactic completed the third test flight of its VSS Unity Space Shuttle over the Mojave Desert on Thursday, bringing space explorer billionaire Richard Branson one step closer to becoming the first customer in space.

After firing below the wing of its carrier plane at 46,500 feet, VSS Unity fired its rocket motor for 42 seconds to accelerate itself and its two pilots to Mach 2.47 or nearly two. And one and a half times the speed of sound, said Virgin Galactic in a blog post


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