Crew-12 will bring the ISS back up to its normal complement of seven astronauts. The orbiting lab has been operating with a skeleton crew of three since mid-January, when the Crew-11 mission departed a month early in the first-ever medical evacuation from the ISS.

A month after the first medical evacuation in the history of the International Space Station, a new crew is preparing to launch into orbit under unusually intense scrutiny. The upcoming SpaceX Crew-12 mission is not just another rotation flight,