India, March 18 -- As NASA astronauts Sunita Williams and Butch Wilmore are set to return to Earth on SpaceX's 'Dragon' capsule, the belated journey brings back memories from three years ago, when a crew leaving the International Space Station had to use diapers due to a broken toilet on their capsule belonging to Elon Musk's company.

Four NASA astronauts had to spend 20 hours in the SpaceX capsule on their return journey, right from the time of undocking to that of their splashdown.

Megan McArthur, one of the four astronauts belonging to the American space agency, had back in 2021 described the situation as "suboptimal" but manageable, a report from The Associated Press had said.

She said that a spaceflight is full of little challenge...