https://www.cnet.com/news/richard-branson-virgin-galactic-vss-unity-completes-first-flight-since-crash/ >The rocket-powered space plane named VMS Unity took off in California's Mojave Desert attached to Virgin's jet-powered cargo craft, WhiteKnightTwo, before reaching a high enough altitude to separate and fire its engine. >The rocket ship accelerated past the speed of sound for just a moment before slowing down and turning around for a glide back home.