Topic

Polycyclic Aromatic Hydrocarbons

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Explore Polycyclic Aromatic Hydrocarbons (PAHs), common environmental pollutants from combustion. Learn about their sources, health risks, and impact on our world.

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    Space Has A Distinct Smell Often Described As Metallic Or Burnt Steak

    Astronauts returning from spacewalks report a unique aroma clinging to their suits, attributed to polycyclic aromatic hydrocarbons. These molecules are created by dying stars and exist throughout the cosmos, giving space its peculiar scent.