Uranus used to be called George. The whole name is Georgium Sidus.

Mushballs – Giant, Slushy Hailstones – Stash Away Missing Ammonia at Uranus and Neptune

Stinky 'mushball' hailstones on Uranus may explain an atmospheric anomaly there

Giant 'Mushballs' Could Be Hiding The Missing Ammonia on Neptune And Uranus