NASA is planning missions to show how to make oxygen on Mars and water on the moon.
Previously, studies have showed that the viable option for future human expeditions to Mars – as well as Mars sample return missions – require “in-situ resource utilization,” or IRSU, to cut the costs of launching everything from Earth.
Lunar geologist Paul Spudis, with the Lunar and Planetary Institute in Houston, told Discovery News, said that doing ISRU gives leverage as the fraction of intelligent-to-dumb mass on your spacecraft is changed in favor of the intelligent part.