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Astronomy

Titan's Atmospheric Chemistry and Prebiotic Implications

Quick fact

Titan's thick atmosphere, made mostly of nitrogen with a few percent methane, receives enough solar ultraviolet light and charged particles from Saturn's magnetic field to drive a continuous production of hydrogen cyanide—a molecule that can join together to form the building blocks of proteins and DNA.

Why this is interesting

You know how comets and asteroids sometimes carry the raw ingredients for life—but what if a whole planet-sized moon had a natural lab churning out complex organic molecules? Titan, Saturn's largest moon, is exactly that kind of factory.