Astronauts Butch Wilmore and Suni Williams were scheduled to return home last year before issues with Boeing’s spacecraft extended their stay.

NASA researchers expect Suni Williams and Butch Wilmore will be able to recover from the common body challenges astronauts deal with after spending time in space and then returning to Earth.

Williams returned to Earth on Tuesday evening after spending nine months aboard the International Space Station (ISS) along with fellow astronaut Barry “Butch” Wilmore.