Astronauts have disclosed the distinct odor of space, and it’s more pungent than one might anticipate

Astronauts have reported smelling unusual scents in space, which may seem surprising given the lack of air in space. Technically, one cannot smell anything in space, as it is an airless vacuum. However, space is not entirely a vacuum; it contains various molecules, some of which have strong odors, according to

Astronauts have described various smells in space, including gunpowder, ozone, and burnt steak. One reason for these smells could be the interaction of single oxygen atoms with spacesuits during spacewalks, leading to the formation of ozone. Additionally, interstellar carbon, containing Polycyclic Aromatic Hydrocarbons (PAHs), might contribute to smells resembling burned food.

Other peculiar odors reported in space include hydrogen sulphide (rotten eggs) and ammonia (urine), detected around a comet by the European Space Agency’s Rosetta. Titan, Saturn’s moon, is believed to smell like gasoline due to the presence of benzene in its hazy atmosphere. Furthermore, a massive interstellar cloud, Sagittarius B2, contains large amounts of alcohol, including substances used in beer production.

While these odors might seem intriguing, it’s important to note that the lack of a traditional atmosphere in space means that astronauts technically cannot smell these scents as they would on Earth. The reported smells are associated with the interaction of substances in the unique environments astronauts encounter during their missions.

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