A new analysis of carbon meteorites suggests that they likely carried some of the building blocks needed for DNA to the Earth, according to a NASA-funded study.
The research in the Proceedings of the National Academy of Sciences adds weight to the long-debated theory that at least some of the materials needed to make early life forms came to our planet via meteorites.
Scientists used advanced mass spectrometry instruments to scan 11 organic-rich meteorites called carbonaceous chondrites for nucleobases, which contribute to making DNA and RNA.
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