All 5 of life’s genetic letters have turned up on a second asteroid.
Japanese scientists analysing dust that the Hayabusa2 probe brought back from asteroid Ryugu have found adenine, guanine, cytosine, thymine and uracil, the five bases that spell out DNA and RNA, in roughly similar amounts.
In 2023 the same team had found only uracil. NASA’s samples from Bennu, a different asteroid, held all five too. That means the ingredients are probably common in space; how often they turn into life is still anyone’s guess #Science #news #dna #RNA #life
https://www.sciencedaily.com/releases/2025/01/250129115223.htm
