Dark oxygen could rewrite Earth’s history

Scientists just discovered oxygen being produced without sunlight —
without photosynthesis — at the bottom of the ocean. This “dark
oxygen” could fundamentally change the story we tell of life on
Earth and in the rest of the universe. Guest: Alycia Smith,
ecologist at Heriot-Watt University For show transcripts, go to
vox.com/unxtranscripts For more, go to vox.com/unexplainable And
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