NASA finally got two astronauts back to Earth after being stranded on the ISS for 9 months. Such long space missions can take a toll on the human body.

Suni Williams and Butch Wilmore are gearing up to return toE Earth on Tuesday after an unexpected nine months aboard the ISS, and experts are sharing a number of health effects the pair might experience when they re-enter Earth's atmosphere.

The group were seen smiling and waving at the camera as they were wheeled off for medical checks after their landing. They will be given health assessments and flown to their crew quarters where they will stay until given the all clear.