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All 5 'letters' of DNA found on an asteroid speeding through our solar system. What do they tell us about the origins of life? – Live Science

March 19, 2026

All 5 ‘letters’ of DNA found on an asteroid speeding through our solar system. What do they tell us about the origins of life? Live ScienceA complete set of canonical nucleobases in the carbonaceous asteroid (162173) Ryugu NatureThe asteroid Ryugu has all of the main ingredients for life New ScientistRyugu asteroid samples contain all DNA and RNA building blocks, bolstering origin-of-life theories Phys.orgRyugu asteroid sample contains all five key components of DNA, scientists find Space