Body Changes In Space - Blog Posts

Very strange things happen to your body if you spend a year in space

NASA Astronaut Scott Kelly returns to Earth Tuesday night after spending almost a year in space.

But his 340 days aboard the International Space Station (ISS) haven’t been all fun and games.

Our bodies evolved on Earth, so they’re not built for weightlessness — which is exactly why NASA plans to use Kelly to study the long-term effects of spaceflight the human body.