Canadian astronaut and current International Space Station commander Chris Hadfield is objectively wonderful. While he clearly has a high-pressure and busy working life, what with all the 'being in space' and everything, he also has a fair amount of free time, and seems to spend that mostly trying to entertain the internet.
His latest experiment was simply to take a soapy dishcloth and wring it in zero gravity.
The results, as usual, are completely hypnotic, and counter-intuitive.
Take a look above - and check out some of the best photographs he's taken from the ISS observation deck below.