SpaceX launched its first recycled rocket on Thursday, the biggest leap yet in its bid to drive down costs and speed up flights. The Falcon 9 blasted off from Florida's Kennedy Space Center, hoisting a broadcasting satellite into the clear sky on the historic rocket reflight. It was the first time SpaceX founder Elon Musk tried to fly a booster that soared before on an orbital mission. Musk called it an “incredible milestone in the history of space” after the booster landed, adding it was going to be “a huge revolution in spaceflight”.