always_wear_pyjamas t1_jd711ed wrote
Reply to comment by _richas_ in A crucial building block of life exists on the asteroid Ryugu. Uracil, a component of RNA, was found in a sample collected by Japan’s Hayabusa2 spacecraft. by Science_News
That's one idea. Another is that maybe something about the asteroids themselves serves as a medium where these things form easily from simpler molecules.
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