On August 1, SpaceX launched its 11th crew rotation for NASA. The four will spend six to eight months on the International Space Station.

The flight, scheduled to take off from Kennedy Space Center in Florida, was scrubbed due to an unfavorable weather forecast for the launch site. The next attempt will be 11:43 a.m. EDT Friday. The launch of the SpaceX Crew-11 mission via Falcon 9 is rescheduled for Kennedy Space Center in Florida.

Russian crew of four rocketed from NASA’s Kennedy Space Center. They’ll replace colleagues who launched to the space station in March as fill-ins for NASA’s two stuck astronauts.