When I was 16, my first vacation to Europe surprised me. But at the end of the trip for a long time to stay with me rather than the Eiffel Tower, Buckingham Palace or canals of Venice, but ordinary aspects of life: the locals take for granted the things: road marking and the color of the logo, posters, a local snack food in the shop window, and the place of the sound and the smell of the most important.
While we are on the subject of outer space: what about the planets? We can guess roughly the odor of the different planets due to the chemical composition of their atmospheres.
Venus smells of rotten eggs due to the clouds of sulfuric acid in the atmosphere, and similarly sulfur dioxide and hydrogen sulfide is the cause of Mars and Uranus smelling the same.
Jupiter: because each layer of its atmosphere is made up of different chemicals, the scent depends on where you are. In some layers you will smell delightful bitter almonds due to the not-so-delightful hydrogen cyanide, while in other layers (the ones near the top) you’ll smell the foul smell of ammonia (cleaning products). That almond-like smell of cyanide actually occurs naturally in flowers like jasmine in the (basically harmless) form of benzyl cyanide.
The rest of the planets are mostly without a distinct scent due to atmospheres of largely odorless gasses.
