NASA seeks commercial space-station proposals ahead of ISS retirement

NASA released its final request for commercial space-station proposals on October 9, inviting U.S. industry to develop destinations and transportation services in low Earth orbit. The competition is a step toward maintaining an American orbital presence after the International Space Station retires, but it does not establish when replacement stations will be ready.

Proposals are due December 8, 2026, and NASA expects to award contracts in spring 2027. The announcement sets out how the agency intends to buy future capabilities; it names no winning companies, contract values or dates for stations to begin operating.

What NASA wants commercial stations to provide

In its October 9 announcement, NASA says the solicitation covers designing, building, testing, certifying and operating commercial orbital destinations. Companies would provide end-to-end destination and transportation services for human spaceflight, bringing both access to orbit and the facilities needed once crews arrive within the announced scope.

NASA intends to use firm-fixed-price, multi-award, indefinite-delivery/indefinite-quantity contracts supporting development, certification and services. Its approach allows two or more contractors to proceed through early development, followed by a competitive task order for final design, testing and evaluation, certification and services from one or more contractors.

Administrator Jared Isaacman said NASA would still need a place to conduct research, develop technologies, train crews and prepare for missions to the Moon and Mars after the ISS retires. He presented commercial stations as a possible way to provide those capabilities while allowing the agency to devote more resources to other missions.

Commercial demand is part of NASA’s plan

“The opportunity is significant, but the economics ultimately have to work,” Isaacman said. He called for credible plans, strong technical execution and companies willing to invest in destinations that could serve NASA while developing additional customers and markets.

That commercial ambition also featured in the U.S. Government Accountability Office’s June report on the transition. GAO described NASA’s ultimate goal as becoming one of many customers buying services from privately owned and operated stations, replacing its reliance on the government-owned ISS. The October announcement does not establish whether enough demand beyond NASA exists to sustain those businesses.

The final solicitation follows several rounds of industry consultation. NASA issued two requests for information in March to gather views on orbital destinations and transportation, then published a draft request for proposals in July. An industry day and individual meetings gave interested companies opportunities to comment on the planned acquisition approach.

GAO warned of a gap after ISS retirement

In its June 17 report, GAO identified the ISS’s planned retirement in 2030 as a critical constraint on the transition. Commercial stations becoming available only after the ISS retires could leave a gap in human presence in low Earth orbit. NASA’s historical development data suggested that station development might take longer than planned, the watchdog said.

GAO reviewed NASA, commercial station-development and ISS documents and interviewed relevant officials. Its account of the acquisition approach reflected conditions as of May, before the final October solicitation. The earlier findings provide context for the schedule risks, rather than an assessment of the newly announced competition.

At the time of that report, NASA was working with six U.S. companies to develop and certify commercial stations. That historical count does not identify which companies will submit proposals under the final solicitation or which might receive contracts.

The next decisions extend beyond contract awards

NASA officials told GAO that a readiness assessment would be needed in 2027. One reason was to allow enough time to secure funding for additional transportation vehicles if ISS operations continued. Extending the station’s life beyond 2030 would have budget implications, GAO said.

The watchdog recommended that NASA assess the likelihood and duration of a potential gap and document how it would decide whether to retire the ISS as planned or extend operations. That process should include key assumptions, risks and uncertainties.

“We’ve made it clear that NASA will never give up its presence in low Earth orbit,” Isaacman said in the October announcement. The immediate milestones are now December’s proposal deadline and the expected spring awards. Operational readiness, station launch dates and the eventual number of providers remain unspecified.