Blue Origin MK1 lander completes thermal vacuum testing for Artemis
Updated
Updated · NASA · May 4
Blue Origin MK1 lander completes thermal vacuum testing for Artemis
7 articles · Updated · NASA · May 4
Tested in Chamber A at NASA Johnson Space Center, the uncrewed cargo lander is due to carry two NASA CLPS payloads to the lunar south pole this year.
The campaign simulated space vacuum and extreme temperatures, allowing engineers to assess system performance and confirm the spacecraft's structural and thermal integrity before launch.
NASA says MK1 will demonstrate precision landing, cryogenic propulsion and autonomous navigation, while informing future Artemis missions and Blue Origin's larger crewed Blue Moon Mark 2 lander.
After a recent engine failure, can Blue Origin guarantee its lander's reliability for NASA's critical lunar missions?
NASA plans a permanent Moon base by 2030, but can commercial landers meet the aggressive new timelines for 2028?
With NASA's science budget facing a 47% cut, is the Artemis program sacrificing discovery for a race back to the Moon?
Blue Origin’s Blue Moon MK1 Passes Critical Thermal Vacuum Test, Paving Way for Mid-2026 Lunar Cargo Mission
Overview
In early 2026, Blue Origin successfully completed critical thermal vacuum testing of its Blue Moon MK1 lunar lander at NASA's Johnson Space Center, validating its ability to operate in the harsh space environment and significantly reducing mission risks. This milestone advances the lander toward its planned mid-2026 launch atop the New Glenn rocket, which recently demonstrated readiness. The MK1 mission aims for an autonomous precision landing at the lunar South Pole, carrying NASA payloads to study landing effects and improve navigation. Blue Origin’s cargo-first strategy with MK1 lays the foundation for the human-rated MK2 lander, positioning the company as a key player in NASA’s Artemis program amid growing competition and budget challenges.