As for Uranus, it smells like farts because its upper atmosphere is made up of hydrogen sulfide, a University of Oxford study from 2018 found. The more you know.

Lifestyle This is what outer space smells like — and it’s stinkier than you’d expect By Katherine Donlevy Published Jan. 10, 2024, 7:49 p.m. ET ...

Further, the chemical makeup detected on Uranus shows that the gas giant most likely smells like farts or rotting eggs. Now, obviously, we can't go out into space or down to Uranus and just sniff ...