Assess learners' ability to design an integrated, self‑sustaining bioregenerative life support system for a Mars habitat: test understanding of closed‑loop air revitalization, water reclamation, waste treatment, and food production (plants, algae, microbial bioreactors); mass/energy/stoichiometric budgeting and modeling; selection of biological and mechanical components; control, redundancy and failure‑mode mitigation; constraints of launch mass, power, and maintenance; and the experimental validation and scalability steps required to support a specified crew size and mission duration.