NASA announced on Friday that a SpaceX rocket will send two American astronauts to the International Space Station in May, the first manned US spaceflight in nearly a decade. "On May 27, @NASA will once again launch American astronauts on American rockets from American soil!" NASA chief Jim Bridenstine said in a tweet. The head of the US space agency said the astronauts would be sent to the ISS on a SpaceX Falcon 9 rocket. ico/cl