Assess students' ability to design a bioregenerative closed-loop life support system for a Mars habitat: integrate air revitalization, water recycling, and food production; produce component- and process-level choices (plants, microbes, physico-chemical units); create mass and energy budgets for a specified crew and mission duration; specify redundancy and monitoring strategies; analyze failure modes and contingencies; and evaluate trade-offs, scalability, and Mars-specific constraints (gravity, radiation, resupply cadence).