After months of testing Richard Branson's rocket-powered plane at lower altitudes, two of Virgin Galactic's test pilots made it to the edge of space on Thursday — 51.4 miles above Earth.
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Sat, 12/15/2018 - 2:09pm
After months of testing Richard Branson's rocket-powered plane at lower altitudes, two of Virgin Galactic's test pilots made it to the edge of space on Thursday — 51.4 miles above Earth.