PORT CANAVERAL, Fla. – The SpaceX rocket booster used to launch NASA astronauts Bob Behnken and Doug Hurley on their mission to the International Space Station, making history by being the first private rocket to do so, headed back into Port Canaveral Tuesday. The Falcon 9 rocket booster landed at sea on the droneship Of Course I Still Love You about 10 minutes after launching the Crew Dragon spacecraft into orbit Saturday afternoon. The SpaceX launch marked the first time a private company has launched humans to orbit and the first time Americans have launched from U.S. soil since 2011. The first stage is what returned to Port Canaveral Tuesday. [EXCLUSIVE: SpaceX CEO Elon Musk officially launched humans to space -- here’s what he’s planning next]Full Screen 1 / 9 The SpaceX Falcon 9 booster used to launch two NASA astronauts to orbit returns to Port Canaveral via droneship on June 2, 2020.