When astronauts are on a mission outside the International space station, compounds in space stick to their clothes and are taken back to the space station, and the smell of the universe is on these special compounds. so they smelled the true smell of the universe: outer space smelled like the smell of a car race, mixed with the smell of hot metal, diesel and barbecue. These smells are mainly the by-products of the intense burning of dying stars. The by-product is a strong-smelling compound, polycyclic aromatic hydrocarbons, which fill the universe and float forever. They are found in comets, meteors and space dust, and they are also one of the important components of life on earth when they were first formed. They are also found in coal, oil and even food on earth.
tent with the original text?
There are many kinds of compounds in space