Scientists Successfully Grow Chickpeas in Simulated Lunar Soil

Scientists have achieved a milestone in extraterrestrial agriculture by successfully growing chickpeas in soil mixtures containing up to 75% simulated lunar regolith. This advancement could pave the way for astronauts on long-term lunar missions to cultivate their own food.

The research, conducted at Texas A&M University, involved planting 'Myles' variety chickpea seeds coated with beneficial fungi into a blend of simulated lunar soil and vermicompost—a nutrient-rich substance produced by earthworms. The study found that while chickpeas could grow in mixtures with up to 75% lunar simulant, higher concentrations led to decreased yields, and plants in 100% lunar simulant failed to produce flowers and seeds.

Jessica Atkin, a doctoral candidate and NASA fellow at Texas A&M's Department of Soil and Crop Sciences, emphasized the nutritional benefits of chickpeas, stating they are "high in protein and other essential nutrients, making them a strong candidate for space crop production."

The study also highlighted the role of fungi in aiding plant growth by helping plants absorb essential nutrients while reducing the uptake of heavy metals present in lunar regolith. However, before these chickpeas can be deemed safe for consumption, further testing is required to assess metal accumulation. Atkin noted, "Before anyone makes moon hummus, we need to confirm they are safe and nutritious. Those results will be published in a follow-up paper later this year."

This research represents a significant step toward establishing sustainable food sources for future lunar missions, addressing the challenges of transporting food from Earth and supporting long-term human presence on the Moon.