One of life's crucial building blocks has been identified on the asteroid Ryugu, shown in an image taken by Japan's spacecraft Hayabusa2.
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Asteroid Ryugu contains vitamin B3 and uracil, one of the chemical letters in RNA, according to a new analysis of samples collected by Japan's Hayabusa2 probe. https://www.sciencenews.org/article/building-block-life-asteroid-ryugu #astrobiology #asteroids
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