NASA's stuck astronauts are finally on their way back to Earth after 9 months in space
The pair of NASA astronauts expected to be in space for a week. Instead, they orbited the planet for nearly a year.
NASA stunned after comparing health of astronaut who spent 340 days in space to identical twin brother on Earth
What happened to NASA astronaut Scott Kelly after spending a year in space while twin brother Mark, also an astronaut, remained at home?