https://www.sciencealert.com/we-ve-just-discovered-comet-67p-has-it-s-own-little-churymoon
We've Just Discovered Comet 67P Has Its Own Little 'Churymoon', And It's So Cute : ScienceAlert
Aug 16, 2019 - The European Space Agency's (ESA) Rosetta mission spent two years at the comet 67P/Churyumov-Gerasimenko.