Axiom Space was founded in Houston in 2016 by Kam Ghaffarian and former ISS program manager Michael Suffredini. The company’s early plan centered on using the International Space Station (ISS) as a starting point for commercial human spaceflight and for eventually creating an independent commercial space station.
NASA selected Axiom Space to provide at least one habitable commercial module to be attached to the ISS. This decision was a key policy step in NASA’s approach to shift more low-Earth orbit activity to commercial partners while NASA focuses more on deep-space exploration.
NASA formally awarded Axiom Space a contract with a maximum potential value of $140 million (including options) for work tied to attaching a commercial module to the ISS. The contract structure supported NASA’s goal of encouraging private ownership and operation of low-Earth orbit infrastructure.
Axiom Mission 1 (Ax-1) launched on a SpaceX Falcon 9 with a Crew Dragon spacecraft, carrying four private astronauts to the ISS. The flight demonstrated that a private company could organize a crewed orbital mission, train a crew, and integrate safely with ISS operations.
Ax-1 returned to Earth with a splashdown off Florida, concluding Axiom’s first private astronaut mission to the ISS. The mission helped establish Axiom’s “precursor mission” approach—using private ISS flights to build operational experience for a future Axiom Station.
NASA reported Axiom was planning four modules as an "Axiom Commercial Segment" attached to the ISS, with Axiom Hab One targeted for launch and attachment in 2026. NASA also described the longer-term transition plan: after ISS retirement, Axiom’s segment would separate and become a free-flying commercial destination called Axiom Station.
Axiom Mission 2 (Ax-2) launched to the ISS, again using SpaceX Falcon 9 and Crew Dragon. The mission strengthened the model of privately organized ISS visits that also support national and scientific goals through research and astronaut participation.
Ax-2 splashed down off Florida, ending the mission after about eight days on the ISS. Axiom highlighted that the crew completed more than 20 research experiments, reinforcing that these flights were positioned as more than sightseeing trips.
Axiom Mission 3 (Ax-3) lifted off from Kennedy Space Center on a SpaceX Falcon 9 and Crew Dragon. The mission continued Axiom’s pattern of privately organized ISS flights, supporting both national astronaut participation and a growing set of commercial research activities in orbit.
After undocking from the ISS, the Ax-3 crew splashed down off Florida, completing the mission. NASA and Axiom emphasized that the crew returned with experiment results and cargo, highlighting the role of private missions in expanding ISS use beyond traditional government crews.
NASA announced a change in Axiom’s planned build sequence: the Payload, Power, and Thermal Module would launch first, enabling the complex to separate from the ISS and become a free-flying station as early as 2028. This update showed how Axiom’s plan was adapting to ISS transition needs and the goal of avoiding a gap in U.S.-supported low-Earth orbit capabilities.
Axiom Mission 4 (Ax-4) launched to the ISS on a SpaceX Falcon 9 and Crew Dragon. The crew included participants tied to India, Poland, and Hungary, reflecting Axiom’s role as a commercial provider that can support national astronaut programs and a larger portfolio of scientific work.
Ax-4 concluded with a Pacific Ocean splashdown, ending Axiom’s fourth private astronaut mission to the ISS. By mid-2025, Axiom’s repeated ISS missions and NASA-coordinated station plans together showed a clear pathway: build operational experience through “private missions” while developing modules intended to become the independent Axiom Station.
Axiom Space commercial ISS missions and Axiom Station development (2016–2025)