Note: Single-source report; awaiting corroboration.
Blue Origin's Endurance (MK1), an uncrewed cargo lander developed to advance Human Landing System capabilities for NASA’s Artemis program, has completed testing in NASA Johnson’s Chamber A, one of the largest thermal vacuum test facilities worldwide. These tests simulated the vacuum of space and extreme temperatures the spacecraft will encounter, enabling evaluation of system performance and verification of structural and thermal integrity prior to launch.
Endurance will deliver two NASA science and technology payloads under the Commercial Lunar Payload Services (CLPS) initiative to the lunar South Pole this year. These payloads include Stereo Cameras for Lunar Plume-Surface Studies, which will capture images of the lander's engine plume interacting with the lunar surface during descent, and a Laser Retroreflective Array to help orbiting spacecraft determine precise locations using reflected laser light.
The NASA testing was conducted under a reimbursable Space Act Agreement, highlighting a public-private partnership model. This approach is part of NASA’s “front door” strategy, providing commercial partners access to agency facilities and expertise while maintaining safety, mission assurance, and alignment with NASA objectives.
Blue Origin and NASA will apply lessons from MK1’s design, integration, and testing to support future Artemis missions aiming to return astronauts to the Moon. MK1's development contributes to technology maturation and risk reduction for future human-class systems such as Blue Moon Mark 2 (MK2), a larger crewed lander designed for lunar orbit-to-surface missions, enabling sustained human exploration at the Moon’s South Pole region.