NASA opens final bidding for private space stations to replace the ISS

NASA has taken the most concrete step yet toward a future in which private companies, not the United States government alone, operate human outposts in low Earth orbit. On October 9, 2026, the agency released its final Request for Proposals for commercial low Earth orbit destinations, a procurement that asks industry to design, build, test, certify and operate private space stations capable of hosting astronauts after the International Space Station retires around 2030. The document runs 360 pages and sets a proposal deadline of December 8, 2026, with contract awards expected in spring 2027.

The solicitation is the culmination of a years-long planning effort. NASA published two Requests for Information in March 2026, followed by a draft RFP in July, an industry day and a series of one-on-one meetings with companies. The final RFP, designated Release 26-086, signals that the agency is ready to commit money and contracting authority to the commercial low Earth orbit economy it has said it wants to foster. NASA Administrator Jared Isaacman framed the move as a matter of national policy, saying the agency is committed to maintaining a sustained American presence in low Earth orbit long after the ISS retires.

Several companies are positioned to bid. Axiom Space, Voyager Space with its Starlab station, and Vast Space have been named as leading candidates. Blue Origin participated in an earlier funding stage, though its plans for this competition remain unclear. SpaceX, which holds a separate contract to deorbit the ISS, is seen as unlikely to take part as a station operator. The competition also arrives as NASA's current ride to orbit, SpaceX's Crew Dragon, faces questions about its long-term availability, adding urgency to the station plans.

The stakes are high for both NASA and the companies involved. The ISS has cost billions of dollars and up to $4 billion annually to operate, according to a 2021 report cited by Houston Public Media. With the station's retirement approaching, NASA wants to become one customer among many in low Earth orbit rather than the sole owner and operator of a human habitat. The final RFP is the mechanism for turning that vision into contracts.

Key Facts

NASA released the final RFP on Friday, October 9, 2026, and proposals are due Tuesday, December 8, 2026. NASA said on October 9, 2026 that contract awards are expected in spring 2027. Houston Public Media reported on October 12, 2026 that awards could come around April 15. The initial contracts would last about eight years, with potential extensions totaling about 15 years, according to that report.

The procurement uses a multi-award, indefinite-delivery/indefinite-quantity structure with firm-fixed-price task orders. NASA intends to select two or more contractors for early development, then hold a competitive task order for final design, test, evaluation, certification and services. DigitalToday reported on October 12, 2026 that Phase 1 winners would receive at least $100 million in funding. In Phase 2, starting in 2027, NASA would support station development and certification.

NASA has not disclosed a total contract value ceiling, though Houston Public Media reported that contracts could be worth up to hundreds of millions of dollars. DigitalToday reported that the Phase 3 contract size, covering at least four missions to send NASA astronauts to private stations, is expected to reach billions of dollars. The same report included NASA cost estimates as of 2030: $325 million for a four-person crewed flight and $300 million for a cargo flight.

A notable change in the final RFP gives bidders relief on transportation. Companies do not need to submit a firm contract or letter of intent with Boeing or another transportation provider. NASA said it may support transportation needed for the first four crewed service missions. SpaceNews reported on October 11, 2026 that the final RFP provided companies with relief on one key issue, identified as crew transportation.

Separately, NASA has awarded SpaceX an $843 million contract to develop a vehicle to deorbit the ISS, bringing it through Earth's atmosphere to splash down in an unpopulated ocean area. The ISS has cost NASA up to $4 billion annually to operate, and its construction began in 1998. NASA recently provided an additional $359 million to support Boeing's Starliner crew certification work, according to DigitalToday.

Analysis

The final RFP is a procurement milestone, not a guarantee that a new station will be built. The Portland Register reported on October 9, 2026 that the solicitation is not confirmation that a station has been selected. Submission, selection and operational certification remain distinct stages, and each carries technical and financial risk. NASA's own language emphasizes that the economics ultimately have to work.

What this really means is that NASA is trying to buy a service rather than own an asset, a shift that mirrors how the agency procures crew and cargo transportation to the ISS. By offering multi-award contracts and then competing later tasks, NASA hopes to keep at least two providers alive through early development, preserving competition and redundancy. The $100 million minimum for Phase 1 winners is modest compared with the billions needed to build and certify a human-rated station, so companies will need to raise private capital and find non-NASA customers.

The transportation relief is significant. Requiring a firm commitment from Boeing or another provider would have forced bidders to lock in a launch contract before they knew whether they had won a NASA award. By allowing NASA to support transportation for the first four crewed missions, the agency reduces that chicken-and-egg problem. It also keeps pressure on SpaceX, whose Crew Dragon is currently the only operational US vehicle for ISS crews, to remain available while new stations and new vehicles mature.

Isaacman's public comments stress credible plans and strong technical execution. The companies that succeed will likely be those that can show not just a station design but a business case that includes research customers, private astronauts and international partners. Voyager Space's Starlab CEO Marshall Smith called the RFP an important milestone, according to DigitalToday. Axiom Space said it is reviewing the final notice and preparing next steps. Those reactions suggest the industry sees the RFP as a real opportunity, but also as the start of a demanding competition.

Why It Matters

A sustained American presence in low Earth orbit is the central goal. Isaacman said NASA will continue to need a place to conduct research, develop technologies, train crews and prepare for missions to the Moon and Mars. Commercial stations may provide that capability while creating new opportunities for American industry and allowing NASA to concentrate more resources on deep space missions. If the commercial approach fails, NASA could find itself without a human outpost in low Earth orbit for the first time in decades.

The economics matter as much as the engineering. NASA has said its goal is to be one of many customers in low Earth orbit. That only works if private stations can attract other users, including private researchers, pharmaceutical companies, material science firms and foreign space agencies. The $325 million crewed flight estimate and $300 million cargo flight estimate for 2030 give bidders a price signal, but they also show how expensive human spaceflight remains. Companies must build a market, not just a station.

The transition also affects the ISS itself. SpaceX's $843 million deorbit vehicle is designed to bring the station down safely around 2030. Until a commercial destination is certified, NASA faces a gap risk. The agency's plan to award contracts in spring 2027 and to buy at least four crewed missions in Phase 3 is intended to close that gap, but schedules in human spaceflight often slip. The next few years will test whether commercial stations can be ready in time.

Next Up

Industry has until December 8, 2026 to submit proposals. NASA will then evaluate bids and expects to announce awards in spring 2027, around April. The agency plans to select at least two companies, with Phase 1 winners receiving at least $100 million. A competitive task order will follow for final design, certification and services.

After awards, the focus shifts to development and certification. NASA may fund transportation for the first four crewed service missions, and it will need to certify each station for human spaceflight. The ISS is scheduled to be deorbited around 2030 by SpaceX's vehicle. Whether commercial stations are ready before then depends on technical progress and credible economics, exactly as the final RFP demands.