NASA’s SpaceX Crew-11 was to launch from the Kennedy Space Center in Florida at 12:09 p.m. Thursday. The four astronauts, NASA’s Zena Cardman and Mike Fincke, Japan Aerospace Exploration Agency astronaut Kimiya Yui, and Roscosmos cosmonaut Oleg Platonov, will fly aboard the “Endeavor,” a SpaceX Dragon spacecraft.

The Crew-11 astronauts will soon head to the International Space Station to replace the mission that allowed the Starliner crew to depart in March.