NASA has advanced lunar oxygen production through the Carbothermal Reduction Demonstration (CaRD), extracting oxygen from lunar soil simulant in a vacuum environment at Johnson Space Center. The test used a high-powered laser to replicate concentrated solar heat and a carbothermal reactor developed by Sierra Space; NASA assessed the reactor at technology readiness level 6, meaning a functional prototype is ready for space testing.[4] The programme targets a lunar oxygen-extraction demonstration in 2027.
The result addresses a critical technology gap: lunar regolith can become a local source of life-support oxygen and oxidizer for ascent, landing, and transport systems.[4] For an enduring settlement, this could reduce the mass and launch frequency of imported consumables, but the reactor must retain process gases in vacuum while continuously moving regolith through the reaction zone.[4] The broader Artemis resource campaign must also characterize polar ice, whose oxygen and hydrogen could support life support and fuel production.[5]
The Ark team should track the 2027 demonstration’s reactor throughput, energy demand, oxygen purity, regolith handling rate, duty cycle, maintenance burden, and end-to-end mass efficiency. It should model redundant oxygen plants powered by locally produced solar infrastructure, preserve CaRD-derived process data and failure modes, and integrate oxygen extraction with habitat atmosphere management, electrolysis, propellant production, dust control, and emergency reserves.