Butch Wilmore, a fellow astronaut, stuck in space with Williams, revealed how gravity will be the biggest challenge when the two astronauts return home.

Astronaut Sunita Williams is preparing for a tough transition back to Earth's gravity, after her long mission on the International Space Station (ISS). Her fellow astronaut, Butch Wilmore, emphasized the challenges they will encounter on their return. "Gravity is really tough, and that's what we feel when we get back," Wilmore told CNN.

Astronauts Sunita Williams and Butch Wilmore deny feeling abandoned aboard the space station and emphasise their preparedness for extended stays.