Axiom Space is set to launch its Payload, Power, and Thermal Module (PPTM) as part of a plan to transition from the International Space Station (ISS) to Axiom Station, which aims to be operational in free-flight by 2028.

The company is focused on maintaining a continuous human presence in low Earth orbit (LEO) and serving a diverse global customer base, including NASA, as the ISS shifts towards commercial operations.

Dana Weigel, manager of the ISS Program at NASA, emphasized the need for future commercial destinations to sustain NASA's presence in microgravity, especially as the ISS approaches the end of its 25-year operational life.

This initiative is part of NASA's broader strategy to commercialize space station operations and ensure a smooth transition before the ISS's anticipated retirement in 2030.

The PPTM, constructed by Thales Alenia Space in Italy, will provide essential power and thermal systems and is expected to be delivered for outfitting in 2025, with a launch targeted for no earlier than 2027.

Angela Hart from NASA's Johnson Space Center noted that the updated assembly sequence for Axiom's modules has been coordinated with NASA to facilitate a seamless transition in LEO.

Mark Greeley, Axiom's Chief Operating Officer, stated that the revised assembly plan enhances flexibility, allowing for the addition of modules in orbit after separation from the ISS.

NASA is actively supporting the design and development of multiple commercial space stations, including Axiom Station, as part of its strategy to transition LEO operations to commercial entities.

While awaiting the assembly of Axiom Station, Axiom plans to continue conducting private astronaut missions (PAMs) to the ISS.

The revised assembly sequence aligns with NASA's deorbit strategy for the ISS, accommodating the integration of a U.S. deorbit vehicle.

Once operational, Axiom Station will integrate additional components, including habitats and a research facility, further enhancing its capabilities in orbit.

The future of the ISS remains uncertain due to ongoing hardware issues and political factors, raising concerns about its aging infrastructure.