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An illustration of the viscous “primordial soup" that could have fostered the first self-replicating strands of DNA, heated and cooled as the Earth moved between day and night 4 billion year sago. (Christine He/Georgia Tech)

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Resolution: 1921 x 1484

Created By: Matt Barr - 10/13/2016 12:34 PM

Modified: 10/13/2016 12:34 PM

File Size: 338.89kB