Commercial Crew Program

The Commercial Crew Program (CCP) is a NASA initiative that buys astronaut transportation to low Earth orbit as a service from private companies instead of operating a government-owned vehicle. Under fixed-price contracts awarded in 2014, SpaceX developed the Crew Dragon capsule, launched on Falcon 9, and Boeing developed the CST-100 Starliner, launched on Atlas V. Crew Dragon has flown regular rotations to the International Space Station since 2020.^[1]

The program ended a nine-year period in which the United States could reach the station only by purchasing seats on Russia's Soyuz. Through mid-2026 SpaceX has flown 13 crewed missions under the program: the Demo-2 test flight and the Crew-1 through Crew-12 rotations, one of which (Crew-9) also brought Starliner's stranded test crew home. Boeing has yet to begin operational crewed flights, and its next mission, Starliner-1, has been converted to an uncrewed cargo flight.^[2][3]

Two events in 2026 stand out in the program's recent history: Crew-11 came home on January 15, 2026, months ahead of schedule, in the first medical-evacuation return in US spaceflight history, and Crew-12 has been aboard the station since February.^[4][5][6]

The post-Shuttle gap#

NASA retired the Space Shuttle in July 2011, leaving Soyuz as the only route to the station for American, European, Japanese, and Canadian crews. The price NASA paid per Soyuz seat climbed from about 21 million dollars in 2006 to more than 90 million dollars by 2020, and reliance on a single vehicle carried both programmatic and geopolitical risk.^[1][2]

Building on the commercial cargo model that had produced SpaceX's Dragon freighter, NASA structured commercial crew as a competition among private designs, with the government as anchor customer rather than owner. Congress appropriated less than NASA requested in the program's early years, which the agency has said contributed to first flights slipping from an original 2017 goal to 2020.^[1]

Development and contracts#

Development ran through successive funded rounds: Commercial Crew Development awards in 2010 and 2011, an integrated design phase in 2012, and the Commercial Crew Transportation Capability (CCtCap) contracts of September 2014, worth 4.2 billion dollars to Boeing and 2.6 billion dollars to SpaceX. Each contract covered certification, test flights, and initial operational missions, paid on fixed-price milestones. NASA's inspector general later estimated that developing an equivalent vehicle in-house would have cost 5 to 8 billion dollars per spacecraft, against the 2.6 to 4.2 billion paid under the program.^[1][2]

NASA has since extended SpaceX's contract to a total of 14 rotation missions, carrying the partnership toward the station's planned retirement around 2030.^[1]

Crew Dragon operations#

SpaceX flew an uncrewed orbital test, Demo-1, in March 2019; the same capsule was destroyed a month later in a ground-test explosion that forced a redesign of components in its abort system. After an in-flight abort test in January 2020, Demo-2 carried NASA astronauts Doug Hurley and Bob Behnken to the station on May 30, 2020, the first crewed orbital launch from US soil since 2011 and the first by a commercial spacecraft. Certification followed that November.^[1]

Crew-11, with NASA astronauts Zena Cardman and Michael Fincke, JAXA astronaut Kimiya Yui, and Roscosmos cosmonaut Oleg Platonov, launched on August 1, 2025. On January 8, 2026, NASA announced the mission would end early because one crew member had experienced a medical issue that required diagnostics unavailable in orbit; the agency withheld details for privacy and described the individual as stable. The Dragon splashed down in the Pacific off Long Beach, California, on January 15, 2026, after 167 days in space, the first time a US mission has been cut short by a crew medical problem.^[4][5]

Crew-12 launched on February 13, 2026, carrying NASA astronauts Jessica Meir and Jack Hathaway, ESA astronaut Sophie Adenot, and cosmonaut Andrey Fedyaev, and docked the next day for a planned stay of roughly eight months. The integrated crew reflects an ongoing seat-barter arrangement in which cosmonauts fly on Dragon while NASA astronauts fly on Soyuz.^[6] Beyond NASA service, the same capsule design supports private orbital flights, an early segment of space tourism.

Boeing Starliner#

Starliner's path has been slower. Its first uncrewed test in December 2019 was cut short by software and timer faults; a re-flight in May 2022 reached the station. The Crew Flight Test (CFT) launched Butch Wilmore and Suni Williams on June 5, 2024, but the spacecraft suffered helium leaks in its propulsion system and five aft thrusters dropped out during rendezvous. NASA kept the vehicle docked for weeks of testing, then decided the astronauts would stay aboard the station rather than risk the ride home. Starliner undocked and landed uncrewed at White Sands on September 7, 2024 (UTC); Wilmore and Williams returned with Crew-9 on March 18, 2025, after 286 days in orbit.^[2][7]

Boeing and NASA spent 2025 testing thrusters at White Sands and redesigning thermal protection in the "doghouse" propulsion pods where overheating had degraded seals. In November 2025 the agencies modified the contract: Starliner-1 will fly as an uncrewed cargo mission that doubles as a validation flight, and the number of missions Boeing is contracted to fly was reduced. The flight was targeted for no earlier than April 2026, but as of June 2026 NASA had not set a date, saying the schedule depends on closing out the remaining technical work. A crewed Starliner-2 rotation would follow only after the cargo flight succeeds and the vehicle is certified.^[3][7][8]

Seat prices and costs#

NASA's Office of Inspector General calculated in November 2019 that a Crew Dragon seat costs about 55 million dollars and a Starliner seat about 90 million dollars, compared with the more than 90 million dollars NASA was then paying per Soyuz seat. Later contract extensions raised the Dragon figure to roughly 65 million dollars per seat for Crew-7 through Crew-9 and about 72 million dollars for Crew-10 through Crew-14. Fixed-price contracting has kept NASA's exposure bounded; cost growth beyond the milestones falls on the providers.^[2][1]

Significance#

The program restored independent US access to orbit and has kept the station continuously staffed with larger crews, expanding research time. Its goal of two dissimilar transportation systems remains unfinished while Starliner awaits crew certification, but the service-contract model it proved has spread across NASA: the agency now buys lunar landers for the Artemis program, cargo deliveries, and future commercial space stations the same way. For SpaceX, the program supplied the funding and flight experience that made Dragon the world's most-flown crew spacecraft of the 2020s.^[1][2]

References#

1. Development of the Commercial Crew Program - Wikipedia.
2. Here's How Much NASA Is Paying Per Seat on SpaceX's Crew Dragon and Boeing's Starliner - Space.com.
3. NASA, Boeing pivot Starliner-1 mission from 4-person astronaut flight to cargo-only - Spaceflight Now.
4. Crew-11 to cut mission short and return to Earth due to medical issue - Spaceflight Now.
5. Crew-11 lands after medical situation forces early return - NASASpaceflight.com.
6. NASA's SpaceX Crew-12 Launches to International Space Station - NASA.
7. NASA, Boeing still working on Starliner return to flight - SpaceNews.
8. NASA, Boeing Modify Starliner Contract: Fewer Launches, Cargo Only on Starliner-1 - SpacePolicyOnline.com.