outer space smell: How does outer space smell like: burnt meat, booze, or rotten eggs? Here is what we know
Those aboard the Apollo moon landings described the scent of outer space as gunpowder-like. On the other hand, those who traversed the International Space Station compared the smell to burnt steak. The upper atmosphere of Uranus is made up of hydrogen sulfide, the compound that creates the smell of rotten eggs and human farts.
Source: indiatimes.com