sweat

Normally sweat and urine is recycled into drinking water but a fault on the ISS means the crew must currently store urine instead.

"I would feel the sweat growing on my scalp - I had to swab down my head. You wouldn't want to shake it because it just would fly everywhere."

All that work creates a lot of sweat, Ms Stott says, leading to a very important issue - washing.

Without gravity pulling sweat off the body, the astronauts get covered in a coating of sweat - "way more than on Earth", she says.

Grace Hodgett Young, wearing sneakers and long sweat socks, plays Betty Schaefer, the bright studio script reader who tries to revive Joe’s passion, first as a writer and then as man.