Being an astronaut is hard work - not only are you floating up in space, away from the rest of the world, you have a lot of cleaning to do. But there are plans for a new system that would disinfect the interiors of spacecrafts and space stations with ultraviolet lights. Best of all, it would be autonomous. Plus: the Monday after Easter is the Polish holiday with the unforgettable name: Dyngus Day. 
This Space Roomba Could Clean the ISS While Astronauts Sleep (Futurism)
Not Polish? Don't worry - here's how to celebrate Dyngus Day (The Buffalo News)  

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