https://www.cnbc.com/2018/05/29/virgin-galactic-lands-second-unity-spacecraft-rocket-flight.html > Virgin Galactic took another step on Tuesday toward beginning commercial operations with its latest test flight, only 54 days after its first went supersonic. > Richard Branson's space tourism company completed the second rocket-powered flight of its Unity spacecraft — launching and landing from the Mojave Air and Space Port in the California desert. Virgin Galactic said in a tweet that the company hoped to test a critical system for commercial flights.