NASA and SpaceX have again delayed the return to Earth for four astronauts on the Crew-1 mission to the International Space Station due to bad weather.

SpaceX’s Crew-1 Dragon capsule and its crew of four were scheduled to undock from the station today (April 30) and splashdown just before midday on Saturday (May 1). Their departure had already been delayed from Wednesday (April 28) due to weather. NASA and SpaceX mission teams have not yet agreed on a new return date.

“Mission teams from NASA and SpaceX will meet again on Friday to further review opportunities for the safe return of Crew-1,” NASA officials wrote in a statement. “Crew Dragon is in great health on the space station, and teams will continue to look for the optimal conditions for both splashdown and recovery.”