NASA's Space Biology Program

NASA's Space Biology Program studies how living organisms—such as plants, animals, and humans—are affected by space environments like microgravity and radiation. The goal is to understand biological processes in space, which helps improve astronaut health during long missions and advances our knowledge of life on Earth. Research includes how cells grow, how bones and muscles change, and how ecosystems function in space. This information supports future exploration, such as missions to Mars, and contributes to biological sciences by revealing how life adapts to extreme conditions beyond Earth.