In situ resource utilization

In situ resource utilization (ISRU) refers to the practice of harnessing and using resources found in the environment where a mission or activity is taking place, rather than relying solely on materials brought from Earth or another location. This concept is especially relevant in the context of space exploration, where utilizing local resources can significantly reduce the cost and complexity of missions. For example, on Mars, ISRU could involve extracting water from the Martian soil or atmosphere to produce oxygen and fuel.