NASA’s SpaceX Crew-4 Leaders Discuss Mission Overview. Leaders from NASA, SpaceX, and ESA (European Space Agency) present an overview of NASA’s SpaceX Crew-4 mission to the Internal Space Station. The mission will carry NASA astronauts Kjell Lindgren, Bob Hines, Jessica Watkins as well as ESA (European Space Agency) astronaut Samantha Cristoforetti aboard a Crew Dragon spacecraft on a Falcon 9 rocket to the space station. Launch is scheduled for no earlier than Wednesday, April 20.