While archiving an article about the comet C/2014 UN271 aka. Bernardinelli–Bernstein, which will cross our solar system in 2031, I’ve re-discovered this awesome video from Christian Stangl about the ESA Rosetta mission to the comet 67P/Churyumov–Gerasimenko. But—as stated in die Wikipedia article about C/2014 UN271—there sadly is no such mission planed for this comet as of today …