CST-100 Starliner Calypso

In September 2014 Boeing was one of two companies selected by NASA to develop crewed spacecraft to ferry astronauts to the International Space Station, the other being SpaceX. Boeing planned to construct three Starliner spacecraft. The spacecraft's ability to be reused up to ten times with a six-month turnaround time between flights meant three spacecraft would be enough to satisfy the needs of the Commercial Crew Program.[3] Spacecraft 3 launched for the first time on Boe-OFT, the first orbital flight of Starliner, on 20 December 2019. The spacecraft was scheduled to dock with the ISS the following day. However, due to software errors causing the spacecraft's Mission Elapsed Timer (MET) to be off by 11 hours, the spacecraft performed an "off-nominal orbital insertion burn" and prevented the spacecraft from being able to rendezvous and dock with the ISS during the flight.[4] Instead, the spacecraft remained in orbit for two days, performing as many tests as possible without the ISS rendezvous, and landed at White Sands Missile Range, New Mexico on 22 December 2019.[5]

Upon landing, it was announced that the spacecraft would be reflown on USCV-2, the first operational flight of Starliner to the ISS. After the announcement, NASA astronaut Sunita Williams, commander of the USCV-2 mission, named the spacecraft Calypso after Jacques-Yves Cousteau's oceanography vessel, RV Calypso.[6] Calypso is currently the only Starliner spacecraft to be given an official name. Although Calypso is still scheduled to return to space on USCV-2, Boeing's announcement in March 2020 that they would refly the Orbital Flight Test due to the numerous problems on the first test casts some doubt on whether that will actually happen, since the spacecraft rotation might need to be changed. The spacecraft might now return to space on Boe-CFT, the first crewed test flight of Starliner. Following the spacecraft's second flight it is unclear when Boeing or NASA will fly the spacecraft again. Boeing is currently contracted to fly five operational missions to the ISS under the Commercial Crew Program following USCV-2, so Calypso will most likely see space for a third time on a later crew rotation flight.

Calypso flew in space for the first time on the Boe-OFT mission on 20 December 2019, the spacecraft was scheduled to be reflown on USCV-2 sometime in 2021 although the current flight scheduled currently unclear since it is unknown which spacecraft will fly the Boeing Orbital Flight Test 2 mission.

Mission	Launch date (UTC)	Insignia	Crew	Remarks	Duration	Outcome
Boe-OFT	20 December 2019, 11:36:43		N/A	First uncrewed orbital test flight of Starliner. The mission's main objective of ISS rendezvous was aborted due to software incorrectly keeping mission time, leading to a late orbital insertion burn with excessive fuel expenditure. Issues lead to the need for a repeat Orbital Flight Test being planned.	2d, 1h, 22m, 10s	Partial failure
Boeing Starliner-1	2021 NET		Sunita Williams Josh Cassada TBA TBA	First operational flight of Boeing Starliner, will transport NASA astronauts Sunita Williams and Josh Cassada (plus two other currently undecided astronauts) to the ISS. This was originally planned to mark the second operational commercial crew mission, following SpaceX Crew-1, although the delays caused by the partial failure on OFT have put these plans in doubt.	6 months (planned)	Planned