SpaceX Demo-2 (May 2020)
SpaceX flew its first crewed mission, carrying NASA astronauts Doug Hurley and Bob Behnken to the station. It was the first crewed launch from US soil since the Space Shuttle retired in 2011.
The mission succeeded, ending nine years of US reliance on Russia's Soyuz capsules for crew transport.
It launched SpaceX into the role of NASA's primary crew provider, which has now flown 13 operational rotations.
Crew-13 is the direct continuation of that capability, now routine enough that NASA treats crew rotations as standard operations.
