First Chickpeas Grown in Simulated Lunar Soil – A Step Towards Farming on the Moon

Scientists have taken a significant step towards future lunar agriculture by harvesting chickpeas for the first time from plants grown in a simulated lunar soil substitute. The experiment, described in a new study, aimed to test the fertility of simulated regolith – the dust and rocks covering the Moon's surface. This material, a geological analog of lunar ground, was enriched with essential nutrients and carefully watered. The chickpea seeds germinated, providing crucial proof that cultivation is possible in such a harsh environment. Research into growing plants in extraterrestrial conditions has a long history. The International Space Station has for years conducted experiments with plant cultivation in microgravity, harvesting lettuce, radishes, and peppers. In parallel, since the Apollo program, scientists have been working on simulants of lunar and Martian regolith, testing their agricultural suitability. A breakthrough moment was the cultivation of radishes in a Martian dust simulant around the turn of the 2020s. However, the success came with challenges. Plants grown in the regolith simulant grew noticeably slower and reached smaller sizes than those in ordinary, terrestrial control soil. Their root systems were also less developed. These results show that transforming barren lunar dust into fertile soil will require advanced engineering, precise water dosing, and fertilizers. A key factor in the experiment was precisely the enrichment of the simulant with nutrients, which on the Moon would have to be supplied from Earth or produced locally, e.g., from organic waste. The study has direct implications for planned lunar missions, such as NASA's Artemis program, which envisions returning humans to the Moon and building a sustained presence. The ability to produce food locally is fundamental to the economy and security of future bases. Transporting every kilogram of supplies from Earth is extremely costly. Growing plants on-site would allow for partial self-sufficiency, providing fresh, nutrient-rich food like chickpeas. This plant was chosen strategically due to its high protein and fiber content and relatively short growing cycle. „This shows that plant production on the moon is possible. We showed that lunar regolith has potential, but needs help.” — Jessica Atkin, co-author of the study Although the path from a laboratory experiment to a functional greenhouse on the Moon is long, the study constitutes an important proof of concept. Next steps will include testing other edible plants, optimizing fertilizer mixtures, and research on closed-loop water and nutrient cycles in an artificial ecosystem. Scientists emphasize that future lunar farms will likely be based on hydroponics or aeroponics, where plants grow without soil in a water solution, which may be more efficient than working with regolith. Nevertheless, the success with chickpeas opens a new chapter in space agriculture, bringing closer the vision where astronauts could enjoy meals from local crops, such as hummus made from lunar chickpeas.