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

https://www.sciencedaily.com/releases/2026/11/261102075903.htm
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@kaia we have also made them in a billion dofferent ways that would be plausible conditions on early earth afaik. Amino acids and friends just tend to happen
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@kaia so pur common ancestor is meteoroid.

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@kaia A lot of organic molecules seem to assemble spontaneously anywhere with the right chemicals and a bit of energy, we've found various amino acids in distant nebulae and stuff
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@kaia Some Astro-GeoChemist are not happy with this some are very happy with this.
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