One of life's building blocks could have originated in outer space. Astronomers simulated the clouds of gas and dust that are strewn between stars out in the cosmos and found that their chemical reactions produced nucleobases: the building blocks of DNA. But if this experiment shows how these building blocks actually formed, how exactly did they get to Earth?
Where Did Life Begin?
Nucleotides! In! Space!
Written by Elizabeth Howell October 25, 2019
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