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All 5 genetic “letters” of DNA and RNA discovered in a 4.5-billion-year-old asteroid
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ScienceDaily (all)EN
November 3, 2026

All 5 genetic “letters” of DNA and RNA discovered in a 4.5-billion-year-old asteroid

Scientists have discovered all five essential nucleobases used in DNA and RNA in pristine samples from asteroid Ryugu, revealing that key ingredients for life existed in space billions of years ago. The remarkable finding adds to growing evidence from other asteroids and meteorites that these molecules were widespread throughout the early Solar System.

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Curated from ScienceDaily (all). Classified as Science by AI, which sometimes makes mistakes.

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NASA News11/3/2026

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