Blue Moon Mark 1, an unmanned cargo lander from Blue Origin, has completed environmental testing in the thermal vacuum chamber at Johnson Space Center. The lander is designed to demonstrate landing, propulsion and navigation technologies for future NASA lunar missions, including the Artemis program.
Blue Moon Mark 1 (MK1) is a single-launch, lunar-remaining cargo lander that provides safe, reliable, and inexpensive access to the lunar environment. MK1 will provide payload delivery, utilizing the New Glenn launcher's seven-meter diameter payload fairing to deliver up to three tons to any location on the lunar surface.
Blue Origin's MK1 lunar lander has completed a key testing phase as the company moves closer to supporting NASA's Artemis lunar program. The unmanned cargo spacecraft is being developed as a commercial demonstration mission focused on advancing manned landing system technologies for future lunar exploration.
The latest activity took place inside Room A at NASA's Johnson Space Center. The tests reflect a model of public-private partnership, with Blue Origin using NASA facilities and expertise through an indemnity agreement under the Space Act.
Testing technologies for precision landings on the moon
MK1 is designed to demonstrate several critical capabilities needed for future lunar operations, including precision landing systems, cryogenic propulsion, and autonomous guidance, navigation, and control technologies.
The spacecraft will also carry two NASA science and technology payloads to the moon's south polar region this year as part of the CLPS (Commercial Lunar Payload Services) initiative.
One of the payloads is the SCALPSS camera, which will take detailed images that will show the interaction between the vibrations created by the lander's engine and the lunar surface during descent and landing. The second payload, the retroreflective laser array, will help the spacecraft in the orbit locate positions with greater accuracy by reflecting laser light.
Program NASA's CLPS expands lunar exploration
Under CLPS, NASA is working with U.S. companies to send scientific instruments and technology demonstrations to the Moon. The program aims to deepen understanding of the lunar environment and help prepare for future manned Artemis missions.
Extreme testing in an empty room at Johnson
Engineers tested MK1 inside Johnson Space Center’s A-chamber, one of the world’s largest thermal vacuum chambers. The facility can recreate the near-vacuum of space along with the extreme temperatures that spacecraft experience in flight.
Simulating these harsh Earth conditions allowed systems performance to be evaluated and the structural and thermal robustness of the spacecraft to be confirmed prior to launch. NASA and Blue Origin intend to apply the lessons learned from the design, integration and testing of MK1 to support future Artemis missions aimed at returning American astronauts to the Moon.
The development of MK1 also reduces risks for future manned lunar landing systems, including Blue Moon Mark 2 (MK2). The larger manned lander is designed to safely transport astronauts from lunar orbit to the surface, and support long-term exploration near the lunar south pole.
The testing at Johnson was made possible through NASA's "front door" approach - a coordinated system that gives commercial partners access to its facilities and technical expertise, while maintaining safety, mission assurance, and alignment with NASA's goals.
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