Enlarge / A SpaceX Falcon 9 rocket lifts off with the Crew-8 mission, sending three NASA astronauts and one Russian cosmonaut on a six-month expedition on the International Space Station. SpaceX's oldest Crew Dragon spacecraft launched Sunday night on its fifth mission to the International Space Station, and engineers are crunching data to see if the fleet of Dragons can safely fly as many as 15 times. It has been five years since SpaceX launched the first Crew Dragon spacecraft on an unpiloted ...