Before Crops Grow on the Moon, They Get a Test Plot on Earth
A joint statement of intent sets out coordinated, preparatory work toward an Earth-based demonstrator for learning how to grow crops on the Moon — work described as essential to helping astronauts go farther and stay longer in space. The project is the Lunar Agriculture Module-Ground Test Demonstrator. Its aim is to develop the technologies needed to grow space crops and study how those crops perform under atmospheres and controlled environments similar to what missions at Moon Base are expected to encounter.
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The dietary angle is the easy sell, but the loop-closing may be the bigger engineering story: crops can absorb carbon dioxide, give back oxygen and recycle water, which is what a base far from resupply would need most.
That assumes the plants actually thrive in a Moon-like controlled atmosphere first. Testing exactly that, on the ground, is the point of the demonstrator.