KENT, Washington / HOUSTON : Blue Origin has completed a major qualification milestone for its proprietary spacecraft docking technology after successfully finishing soft capture system testing of its Blue Docking System at NASA’s Johnson Space Center.
The testing campaign was conducted at NASA Johnson’s Six-Degree-Of-Freedom (SDOF) Dynamic Test Facility, a specialized laboratory capable of reproducing the relative motion, alignment errors, and dynamic forces encountered when two spacecraft rendezvous and dock in orbit. According to the company, the results confirm that the system meets performance and interoperability requirements under realistic, flight-like conditions.
Completion of a CLD Contract Milestone
Blue Origin stated that the successful test fulfills a key milestone under its Commercial Low Earth Orbit Destinations (CLD) contract with NASA. The CLD program is intended to support the development of privately operated space stations that will eventually replace the International Space Station (ISS) as NASA transitions to a customer role in low-Earth orbit.
The milestone focused on validating the functionality of the docking system’s soft capture mechanism, the initial phase of docking during which two vehicles make first contact and stabilize relative motion before a hard capture and pressurized seal are achieved.
Verification of Pressurized Docking Performance
The company confirmed that this is the first time its pressurized docking system has been tested and validated in flight-like scenarios. During the campaign, the system demonstrated compliance with the International Docking System Standard (IDSS), the global specification designed to ensure compatibility between spacecraft and stations developed by different organizations and nations.
Testing at the SDOF facility allowed engineers to simulate multiple docking conditions, including angular offsets, lateral misalignments, and varying approach velocities. These conditions are representative of real orbital docking operations and are critical for verifying that the system can safely and reliably accommodate operational tolerances.
Vertically Integrated Design Approach
Blue Origin described the Blue Docking System as a fully vertically integrated product, with design, development, and manufacturing performed internally. This approach allows the company to maintain direct control over system architecture, interfaces, and qualification processes.
The docking system is designed to support repeated use, pressurized crew transfer, and compatibility with a range of spacecraft operating in low-Earth orbit and cislunar space.
Planned Flight Applications
The Blue Docking System is scheduled to fly first aboard the Blue Moon MK2 lunar lander. The MK2 lander has been selected by NASA for the Artemis V mission, where it is expected to support crewed lunar surface operations. In this role, the docking system is intended to enable connections with other spacecraft or future lunar infrastructure, such as the Gateway station.
Following its lunar deployment, the same docking system will be used on Orbital Reef, the commercial space station Blue Origin is developing in partnership with Sierra Space. Orbital Reef is designed as a mixed-use platform capable of supporting government missions, commercial research, and private activities in low-Earth orbit.
Blue Origin indicated that the docking system will also be incorporated into future vehicles as part of its broader spaceflight architecture.
Programmatic Significance
From a program standpoint, the completion of soft capture testing reduces technical risk across multiple Blue Origin initiatives. For NASA, it provides additional assurance that docking hardware associated with Artemis and future commercial stations meets established international standards. For Blue Origin, it represents progress toward operational readiness for both lunar missions and commercial orbital infrastructure.
The company did not provide a timeline for additional qualification tests or flight demonstrations but stated that the completed campaign represents a critical step toward deployment of the Blue Docking System on operational missions.
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