Microbes produce oxygen in the dark

There is more going on in the deep, dark ocean waters than you may think: Uncountable numbers of invisible microorganisms go about their daily lives in the water columns, and now researchers have discovered that some of them ...

Earth's early oceans may have been heavy on the salt

Yale scientists say Earth's ancient oceans likely were much saltier than they are today—a finding that may spice up our understanding of how life, atmosphere, and climate evolved on the planet.

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