After nine long months of waiting, TikToker Daryn Wilmore finally got to say something she’s dreamed of for the better part of a year: Her father, NASA astronaut Barry “Butch” Wilmore, is no longer stuck in space.

On an episode of “The Story Behind the AP Story,” Associated Press space writer Marcia Dunn discusses the space odyssey of NASA’s two stuck astronauts.

What exactly happens to the body in space and what are the risks? In space, astronauts are exposed to varied and increased levels of radiation that are different from those on Earth. Read on to know how it affects human body.