What practice is critical for astronauts to sustain presence on Mars by utilizing indigenous resources?
Answer
In Situ Resource Utilization (ISRU)
In Situ Resource Utilization, or ISRU, is the crucial strategy that shifts the logistical burden from relying on expensive, continuous resupply missions from Earth to the practice of living off the land. This involves processing materials found directly on Mars—such as subsurface ice or atmospheric gases—into necessary consumables, propellant, or construction inputs required for long-term habitation. The success of transitioning from short exploratory visits to establishing a sustained human presence hinges directly on mastering ISRU technologies.
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