Scott Kelly

Scott Kelly is best known for his 'Year in Space' mission, where he spent 340 consecutive days aboard the International Space Station. This mission provided critical data on the physiological and psychological effects of long-duration spaceflight, serving as a benchmark for future Mars missions. His twin brother, Mark Kelly, served as a ground-based control subject, allowing for groundbreaking comparative genetic research. Kelly's ability to maintain peak performance during nearly a year in orbit makes him a pivotal figure in the study of human adaptation to space.