NASA has commenced astronaut training for forthcoming lunar expeditions, utilizing a full-scale mockup of the Blue Origin landing vehicle. A replica of the Blue Moon Mark 2 crew cabin, intended for the Artemis program as a crewed lunar lander, has been delivered to the Johnson Space Center in Houston.
This involves a full-scale prototype of the habitat module, measuring approximately 4.6 meters in height. The complete lander will be substantially larger—around 16 meters tall, including fuel tanks and landing apparatus. Nevertheless, the crew section is what NASA requires immediately for practicing mission protocols.
Engineers and astronauts will employ this mock-up for hands-on exercises. The training regimen covers simulating lunar missions, maintaining communication with Mission Control, performing spacesuit readiness checks, and preparing for mock lunar surface excursions.
Blue Origin is developing the Blue Moon MK2 as a counterpart to SpaceX’s Starship Human Landing System lunar variant. NASA anticipates testing both systems during the Artemis III mission, currently slated for 2027. The subsequent crewed lunar landing under Artemis IV is provisionally scheduled for 2028.
Under the current plan, the Orion capsule will transport the crew to lunar orbit, where the astronauts will transfer to either the Blue Moon lander or the Starship, depending on whichever system achieves operational readiness first. Following touchdown on the Moon, the lander is tasked with returning the crew back to the Orion spacecraft.
Of particular importance to Blue Origin is the cargo lander known as Blue Moon Mark 1, dubbed Endurance. This vehicle is meant to serve as a technological proving ground for the larger, crewed MK2 version. The unit has already undergone thermal vacuum testing at NASA and is currently undergoing supplementary evaluations in Florida ahead of its initial uncrewed flight, scheduled for this year.
This forthcoming mission represents a critical juncture: Blue Origin must demonstrate the system’s capability for a soft lunar landing and operation in the actual lunar environment. The company has yet to accomplish a lunar landing.
However, SpaceX faces its own set of hurdles. The Starship lunar variant is entirely reliant on the super-heavy Starship V3 system, which has yet to complete a full orbital flight. Furthermore, Elon Musk’s company must prove its capacity for routine orbital refueling—a capability essential for the lunar Starship to reach the Moon.
Blue Origin must tackle comparable challenges. Their lunar vehicles are slated for launch aboard the New Glenn rocket, whose schedule has also encountered setbacks. Following an April launch attempt, the FAA temporarily halted New Glenn flights due to an issue placing a satellite into its intended orbit.
Despite these challenges, NASA is clearly indicating a serious commitment to Blue Origin. Initiating training using the full-scale prototype signifies that the agency is already integrating Blue Origin’s system into active Artemis mission scenarios.
In essence, NASA is currently supporting two parallel, independent lunar landing efforts. The rationale is straightforward: returning humans to the Moon has evolved into not just an engineering objective but also a geopolitical race against China. Both Blue Origin and SpaceX have the opportunity to become the first private enterprises to deliver astronauts to the lunar surface.
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