NASA selected three investigations through its Payloads and Research Investigations on the Surface of the Moon (PRISM) program, with delivery planned through Commercial Lunar Payload Services (CLPS) under the Moon Base Program. The missions support Artemis and will study three priorities: environmental hazards, underground shelters, and lunar water ice. LEMS-SP will establish an autonomous station near the south pole to monitor conditions and micrometeoroid impacts; GIMLI will investigate the Marius Hills Pit for evidence of an accessible lava tube; and DISCO will directly measure ice in exceptionally cold lunar micro-cold traps.
The selection addresses three core constraints on permanent habitation. Lava tubes could provide shielding from radiation, micrometeoroids, and extreme temperature swings, while surface monitoring can quantify threats that damage habitats and critical equipment. Direct measurements of ice deposits will determine whether lunar water can support drinking water, oxygen production, hydrogen-oxygen propellant, agriculture, and industrial processes rather than requiring continuous Earth resupply. The missions therefore reduce uncertainty around both habitat protection and local resource utilisation.
The Ark team should track PRISM and CLPS schedules, instrument performance, GIMLI’s assessment of the Marius Hills Pit, DISCO’s measured ice abundance and accessibility, and LEMS-SP’s long-duration hazard data. Ark architecture should treat lava-tube access, redundant autonomous environmental monitoring, and verified polar ice extraction as strategic dependencies, while preserving mission datasets, calibration records, and geological models in geographically and technologically redundant archives.