In 1929 British biochemist John Haldane (1892-1964) put forth the theory that the early atmosphere of Earth contained no free oxygen. Haldane and Soviet biochemist Aleksander Oparin (1894-1980) had ...
We know Earth formed roughly 4.54 billion years ago and that the first single cell lifeforms were present roughly 1 billion years after that. What we don’t know is what triggered the process that ...
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