NASA and SpaceX say the Crew-13 mission to the International Space Station is delayed, as they look into a leak aboard the Dragon capsule. Leaders at NASA say it all has to do with the capsule’s propulsion system, and the leak was found during prelaunch processing. NASA astronauts Jessica Watkins and Luke Delaney will be aboard the mission once it goes along with Canadian Space Agency astronaut Joshua Kutryk and Roscosmos cosmonaut Sergey Teteryatnikov.

SpaceX successfully retrieves a Dragon cargo capsule it sent to the International Space Station in November.