Crew-9 is NASA's next astronaut rotation aboard the International Space Station, and the 10th overall flight of NASA astronauts by SpaceX — including Demo-2 and Crews 1-9. SpaceX flies NASA astronaut crews to the space station as part of NASA's Commercial Crew Program.

NASA will provide coverage of the upcoming prelaunch and launch activities for the agency's SpaceX Crew-9 mission to the International Space Station. Liftoff is targeted for 1:17 p.m. EDT, Saturday, Sept.

NASA's Crew-9 looks different from the original plan. Now only an astronaut and a cosmonaut will launch onboard the SpaceX Dragon. Here's why.