There are few things that we at the Huffington Post UK have pondered more lately than the answer to the age-old conundrum of - how do you shave your head in space?
Thankfully, NASA astronaut Chris Cassidy, has taken it upon himself to let us know.
It might lack the pizazz of singing David Bowie or the sheer gross informativeness of how to throw up but there is something intriguing about watching a grown man vacum his own head.
The new haircut was in tribute to the ever-so-bald Luca Parmitano, who joined him aboard the International Space Station last week.
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Here is our guide to do other perfectly normal, surprisingly difficult things in space.