The Shuttle Program offered scientists the opportunity to conduct research on the effects of microgravity on plants, animals and even the human body. Through this research we’ve found that one of the greatest challenges in keeping astronauts healthy is preventing bone loss. Preventing loss of bone density in microgravity will continue to be a challenge for astronauts in the future as they spend longer durations in space. On the Shuttle, to prevent bone density loss astronauts used resistance bikes and other specially made exercise equipment. What is your favorite exercise? How well do you think it would work in space? This video was a part a full episode of STEM in 30 titled ""8 minute ride: The Space Shuttle at 40"" To watch the full episode visit: https://youtu.be/RpomQWwmsLM For more learning resources be sure to check out Smithsonian Learning Labs: https://learninglab.si.edu/collections/space-shuttle/Eo19xJ5HeiYjFXMa#r For more FREE teacher resources from the Smithsonian’s National Air and Space Museum visit STEM in 30, the museum's Emmy nominated TV show for middle school students: https://airandspace.si.edu/stem-30