AI SpaceFactory, with engineers from NASA Kennedy Space Center, developed LINA, a proposed lunar habitat for Shackleton Crater at the Moon’s south pole. The concept uses fused granular fabrication to print a thin load-bearing shell from lunar-regolith polymer composite, then covers it with 2.7 metres of regolith. The site offers access to water ice and potentially near-continuous sunlight on crater rims. NASA’s REACT collaboration supported the design and testing effort.[1]
The architecture converts locally available regolith into structural protection against galactic cosmic radiation, solar-particle events, micrometeoroids, moonquakes, lunar dust, and extreme thermal cycling. NASA testing has demonstrated printing with regolith simulants in vacuum conditions near 10^-4 torr and temperatures approaching -200 °C; updated designs reduced shell thickness from 50 millimetres to 30 millimetres, while reported construction throughput reached approximately 50 kilograms per hour.[3][5] The polymer binder remains a strategic vulnerability because it is Earth-sourced, and long-duration vacuum, radiation, thermal, and fatigue performance remain insufficiently validated.[1][7]
The Ark team should treat LINA as a candidate outer-shell and berm-construction architecture, not as a deployment-ready habitat. Priorities are independent validation of binder longevity over 50-plus years, dust-sealed interfaces, autonomous excavation and printing, regolith feedstock beneficiation, construction-error recovery, and protection of biological archives from radiation and thermal excursions. Monitor NASA’s REACT outputs, vacuum-chamber trials at Kennedy Space Center, full-scale structural testing, and progress from TRL 5 toward flight qualification.[1][7]