
NASA published a 'Moon Base User's Guide' detailing plans for 73 moon landings to establish sustained human presence. The three-phase plan begins with 21 landings over three years, targeting a $20 billion base near the south pole by 2028. Phase 1 includes 25 launches through 2029. Phase 2 runs 2029-2032 with occasional crewed missions. NASA must develop power systems, life support technology, and hazard detection systems. China's competing lunar ambitions and rising Artemis costs add pressure.