FUNDING

This work was supported by the National Geographic Society–Waitt Grant Program and the NASA Astrobiology Institute.

Czaja’s paper, “Sulfur-oxidizing bacteria prior to the Great Oxidation Event from the 2.52 Ga Gamohaan Formation of South Africa,” was published in Geology, a journal of the Geological Society of America. (access to the full text online is FREE until Dec. 15)



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