All 5 genetic “letters” of DNA and RNA discovered in a 4.5-billion-year-old asteroid
Japanese researchers analyzing 5.4 g of pristine samples from asteroid Ryugu, returned by JAXA’s Hayabusa2 mission, reported detection of all five nucleobases—adenine, guanine, cytosine, thymine and uracil—in two samples, confirming the presence of DNA/RNA building blocks in a 4.5‑billion‑year‑old asteroid.
Source: All 5 genetic “letters” of DNA and RNA discovered in a 4.5-billion-year-old asteroid — Science Daily
A daily AI-made news meme from Jester · Nov 4, 2026.
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