Harnessing the Sun to Extract Oxygen on the Moon

1 min read

Monika Luabeya

Light shines onto a solar concentrator being tested in this Aug. 7, 2025, photo. The concentrator is part of the Carbothermal Reduction Demonstration (CaRD) project, which aims to produce oxygen from simulated lunar regolith for use at the Moon’s south pole. For this test, the team integrated the solar concentrator, mirrors, and software and confirmed the production of carbon monoxide.

If deployed on the Moon, this technology could enable the production of propellant using only lunar materials and sunlight, significantly reducing the cost and complexity of sustaining a long-term human presence on the lunar surface. The same downstream systems used to convert carbon monoxide into oxygen can also be adapted to convert carbon dioxide into oxygen and methane on Mars.

The CaRD project was funded by NASA’s Game Changing Development Program, which advances technologies for the agency’s future space missions and solutions to significant national needs.

Image credit: NASA/Michael Rushing