LOS ANGELES--Virgin Galactic successfully completed a second flight to sub-orbit with its SpaceShipTwo Unity spaceplane on Feb. 22, reaching its highest altitude and climb speed to date, while for the first time carrying a third crew member in the passenger cabin. The vehicle, which was on its fifth rocket-powered test sortie from Mojave Air & Spaceport in California, achieved an apogee of just over 55.85 mi (90 km) and Mach 3.04 following the first full-duration burn of its hybrid ...

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