Boeing’s Starliner Capsule “Calypso” Mission Extension at the International Space Station

Boeing’s Starliner capsule “Calypso” is set to stay at the International Space Station (ISS) for an extended period, announced by NASA on Friday. Originally planned for a nine-day mission, the developmental nature of the mission known as Boeing’s crew flight test is being showcased as various tests are being conducted on Starliner while docked with the ISS.

The mission, which marks the first time that Starliner is carrying crew members, is expected to last at least 17 days – about double the length of the initial plan. The crew members aboard, Butch Wilmore and Suni Williams, are scheduled to fly the spacecraft back to Earth next week, with the departure from ISS set for 11:42 p.m. ET on June 21, and landing approximately six and a half hours later at 6:26 a.m. ET on June 22. During this extended mission duration, further spacecraft testing will be conducted, including operating the capsule’s hatch, firing seven of its thrusters, and checking the cabin air temperature.

NASA highlighted that Starliner will undergo some ‘safe haven’ testing without providing detailed explanations. This type of testing involves astronauts using a spacecraft as a shelter during emergencies. Despite running into several issues during the mission, including helium leaks within the propulsion system and malfunctioning thrusters, NASA assured that the spacecraft remains cleared for crew emergency return scenarios within the flight rules.

Before the launch, a single leak in the helium propulsion system was identified but was deemed stable and not a safety threat. However, since docking with the ISS, four additional helium leaks have been detected. In addition to the helium leaks, a separate issue arose with the spacecraft’s propulsion system, specifically with five out of the 28 RCS engines not operating. Boeing managed to recover four malfunctioning thrusters after troubleshooting and successfully docked the spacecraft.

The crew flight test represents a crucial step towards NASA certifying Boeing to conduct crewed operational missions lasting up to six months. Despite facing setbacks and delays, Boeing remains confident in the spacecraft’s performance and safety. The extended mission duration allows for further evaluations and testing of Starliner’s capabilities, positioning it as a potential competitor to SpaceX’s Dragon for future ISS missions.

Boeing’s Starliner capsule “Calypso” mission extension at the International Space Station reflects the developmental nature of the crew flight test, showcasing the collaboration between Boeing and NASA in conducting various tests and evaluations. Despite encountering challenges such as helium leaks and thruster malfunctions, the spacecraft remains on track for its return journey to Earth. With the mission doubling in length, the testing and operations conducted on Starliner during its extended stay at the ISS will provide valuable insights for future crewed space missions.