Butch Wilmore and Suni Williams, two NASA astronauts, are finally preparing to return home after an incredible nine months in space.
Their mission was significantly prolonged after the ship they arrived on experienced technical issues, even though their stay on the ISS was only intended to last eight days.
The three are going back to Earth in a SpaceX capsule along with Nasa astronaut Nick Hague and Russian cosmonaut Aleksandr Gorbunov.
On Tuesday, they are scheduled to disembark from the ISS at 0505 GMT (0105 EDT) and splash down off the Florida coast at 2157 GMT (1757 EDT).
