Don Pettit spent a busy 220 days at the International Space Station. He conducted experiments, talked with students and ...

an astronaut since 1996 who ventured to space four times. “All that kind of stuff heals up because you’re sleeping, you’re just floating and your body, all these little aches and pains and ...

Working in space is more than floating in microgravity ... One other cool thing about it is that it provides real-time feedback to astronauts during exercise, and then that data is then sent ...

an astronaut since 1996 who ventured to space four times. "All that kind of stuff heals up because you're sleeping, you're just floating, and your body, all these little aches and pains and ...