Cleaning the International Space Station is laborious work, so hygiene firm GermFalcon has made a drone that works in zero-gravity to do the job instead
Source:
https://www.newscientist.com/article/2199921-zero-gravity-robot-cleaner-could-automatically-sterilise-the-iss/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home