3. Mucus:
On Earth, mucus empties through the nose and drains down the throat without you even knowing it. But, up in space, the lack of gravity causes the mucus to back up their sinuses. The only way to get rid of it is to blow into a tissue. Instead, most astronauts resort to hot sauce and spicy food.
2. Dead Skin:
On Earth, dead skin falls off all the time without you knowing it, but in space, there’s no gravity for it to fall. As a result, often astronauts will be dealing with floating clouds of dead skin when, say, one of them removes a sock.
1. Outer Space Smell:
Ever wonder what outer space smells like? When astronauts return from a spacewalk and remove their helmets inside their spaceship, they are greeted by a bizarre odor. They’ve described it as “seared steak,” “welding fumes,” and “sulfurous.” In other words, space stinks.
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