(CAPE CANAVERAL, Fla.) — SpaceX has launched its first recycled rocket. It's the biggest leap yet in the company's bid to drive down costs and speed up flights. The Falcon 9 rocket blasted off from Florida's Kennedy Space Center Thursday evening on the historic reflight. It's the first time SpaceX founder Elon Musk has tried to fly a salvaged booster. The first stage landed on an ocean platform al