An 18-year-old student from San Diego is a Regeneron Science Talent Search finalist for her innovative work in space medicine. Leanne Fan developed a low-cost red-light therapy device aimed at accelerating wound healing in the challenging environment of microgravity. Using a $200 device simulating weightlessness, Fan observed a remarkable 95.2% acceleration in tissue regeneration in flatworms under red-light treatment. Further testing with human cells confirmed these promising results, demonstrating increased cell movement crucial for wound closure. This research addresses a significant concern for long-duration space travel, where healing can be impaired. Fan’s invention potentially offers an affordable and effective solution for astronauts and future space explorers. The therapy could have broader applications for wound care on Earth as well.