Agnirva Space Premier League - Expedition #30162: Refining the Spirulina Space Model: Genes, Growth, and Gravity

After early success with Spirulina research aboard the ISS, scientists continued their investigation through a follow-up experiment titled “Arthrospira Gene Expression and Mathematical Modelling on Cultures Grown in the International Space Station,” spanning Expeditions 71, 72, and 73.

This time, the focus was on refining gene expression models and understanding long-term adaptations of Spirulina in space. Led by Dr. Natalie Leys, the study extended previous findings by growing Spirulina under varying environmental conditions aboard the ISS, including changes in light, nutrients, and temperature.

Through high-resolution molecular analysis, researchers mapped how Spirulina’s genes reacted over time and under stress. Mathematical models were updated to improve predictions about its behavior during extended missions. The refined models are essential for optimizing Spirulina as a key resource in future closed-loop life support systems.

One key outcome was a better understanding of how microgravity affects Spirulina’s ability to photosynthesize and produce bioactive compounds. This could influence how future astronauts generate food and oxygen in space habitats, especially during interplanetary missions.

Moreover, the insights could help in biotechnological applications on Earth—like enhancing Spirulina production efficiency or engineering strains with better resilience.

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