This study evaluates the operational, environmental, and habitation-system requirements for sustained human presence on the lunar surface, the performance of the Lunar Gateway as a transit and staging architecture, and the pathways required to accelerate readiness for Martian surface habitation. The protocol examines habitat resilience, radiation exposure modeling, life-support continuity, EVA logistics, behavioral health in isolated environments, and systems-engineering workflows across lunar, transit, and Mars-analog environments. Special emphasis is placed on the identification, extraction, processing, and utilization of lunar water-ice deposits as a critical resource for life-support, radiation shielding, and in-situ propellant production. Findings will inform future mission design, habitation module development, and interplanetary operational frameworks.

This multiphase observational and operational protocol investigates the habitation lifecycle across three mission environments: (1) lunar surface habitation systems, (2) Lunar Gateway transit architecture, and (3) Martian surface analog habitats. The study integrates engineering, environmental, behavioral, and operational assessments to characterize requirements for long-duration human habitation beyond Earth orbit, with a specific focus on the role of water-ice resources in sustaining habitation and enabling interplanetary logistics.

The lunar surface phase evaluates habitat stability, environmental control and life-support system (ECLSS) resilience, radiation shielding performance, EVA logistics, mobility constraints, and dust mitigation strategies. A central component of this phase is the assessment of lunar water-ice availability, extraction feasibility, thermal stability, and processing pathways. Water-ice is evaluated as a source for potable water, oxygen generation, hydrogen production, and in-situ propellant manufacturing. Operational workflows, redundancy models, and failure-mode responses are analyzed to determine the feasibility of sustained lunar habitation supported by local resource utilization.

The Lunar Gateway phase examines transit-architecture performance, including docking operations, crew systems behavior, resource transfer workflows, and the continuity of life-support and environmental systems during transit. The study evaluates how water-ice-derived consumables from the lunar surface could be staged, processed, or transferred through the Gateway to support outbound missions. Behavioral health observations and operational stressors are assessed to understand crew performance in confined transit environments.

The Martian surface analog phase focuses on long-duration isolation, dust intrusion mitigation, power redundancy, habitat resilience, and environmental stability under Mars-analog conditions. This phase evaluates the translational pathways required to accelerate readiness for Martian habitation, including the potential use of Martian subsurface ice deposits for life-support, radiation shielding, and fuel production. Comparisons between lunar and Martian ice-resource utilization inform cross-environment operational strategies.

Across all phases, the protocol collects operational, environmental, and systems-engineering data to inform future mission architectures, habitation module design, and interplanetary habitation strategies. The study does not involve FDA-regulated products, biomedical interventions, or human subjects research as defined by federal regulations. All activities occur within controlled operational and engineering environments.

Inclusion Criteria:

• Adults aged 18-65
• Able to participate in isolated, confined, or controlled operational environments
• Prior experience in engineering, environmental systems, analog missions, or mission operations
• Ability to perform EVA-analog tasks and operational workflows
• Willingness to participate in multi-phase lunar, transit, and Mars-analog simulations

Exclusion Criteria:

• Medical or physical limitations that prevent participation in isolated or operational environments
• Conditions that limit safe participation in EVA-analog tasks
• Inability to comply with operational protocols or safety requirements
• Participation in conflicting operational studies

Participants include adult analog crew members, habitat systems engineers, environmental control specialists, and mission operations personnel engaged in lunar surface, Lunar Gateway, and Mars-analog habitation assessments.

This study conducts a multiphase operational assessment of habitation systems across lunar surface, Lunar Gateway, and Mars-analog environments. It evaluates habitat resilience, life-support continuity, radiation exposure modeling, EVA logistics, and long-duration behavioral stability. A central focus is the identification, extraction, processing, and utilization of lunar and Martian water-ice resources to support life-support functions, radiation shielding, and in-situ propellant production. Findings will inform future mission architectures and accelerate readiness for sustained human habitation beyond Earth orbit.