Launching atop an Atlas 5 rocket in an "N22" variant* will be Boeing's first operational crewed CST-100 Starliner mission to the International Space Station: Starliner-1. It will see NASA astronauts Sunita Williams, Josh Cassada and Jeanette Epps, as well as Japanese astronaut Koichi Wakata. *The variant designation means it will have no payload fairing, two solid rocket motors and two engines on the Centaur upper stage. Note: The image used in this entry shows the 421 variant.

Launching atop an Atlas 5 rocket in an "N22" variant* will be Boeing's first crewed CST-100 Starliner mission to the International Space Station. It will see NASA astronauts Barry Wilmore, Michael Fincke and Nichole Mann fly to the outpost for at least one or two weeks. *The variant designation means it will have no payload fairing, two solid rocket motors and two engines on the Centaur upper stage. Note: The image used in this entry shows the 421 variant.

Launching atop an Atlas 5 rocket in an "N22" variant* will be Boeing's second uncrewed Starliner test mission to the International Space Station, OFT-2. This was delayed from summer 2021 because of a problem with thrusters on the spacecraft's service module. *The variant designation means it will have no payload fairing, two solid rocket motors and two engines on the Centaur upper stage. Note: The image used in this entry shows the 421 variant.