What effect does space travel have on our bodies and minds? As NASA looks to explore Mars and beyond, it is critical to understand the impacts of spending extended time in space. Brinda K. Rana, Phd, shares the results of NASA's Twins Study that focused on astronaut Scott Kelly who spent nearly one year living on the International Space Station and his identical twin brother, Mark, who remained on Earth. Series: "Stein Institute for Research on Aging" [Professional Medical Education] [Show ID: 31842]