SpaceX successfully launched its Falcon 9 rocket from Cape Canaveral and landed it about eight minutes later. CAPE CANAVERAL AIR FORCE STATION, Fla. -- The rocket that SpaceX landed early Monday after launching a Dragon spacecraft packed with supplies for the International Space Station is ready to fly again, the company's chief executive said. CEO Elon Musk said after preliminary inspections were completed overnight at Cape Canaveral Air Force Station. The first stage of the Falcon 9 rocket touched down at SpaceX's landing pad at the cape minutes after a 12:45 a.m. With an engine firing brightly to slow its speed, the booster dropped through the darkness to a soft landing on four legs, an event punctuated by sonic booms that rattled buildings miles away and prompted some 9-1-1 calls from startled residents.