International Space Station astronauts don’t have time to sleep in on Saturday mornings. They’re far too busy sticking to their strict cleaning schedule, as Saturday is their big “cleaning day” of the week when surfaces have to be sanitised and dust removed. 

In a call with journalists on Friday (April 30), European Space Agency (ESA) astronaut Thomas Pesquet, who arrived at the orbital outpost aboard Dragon Crew Endeavour on April 24, shared insights into what a space station cleaning routine really looks like.