Until now, scientists thought oxygen was only made using energy from sunlight. The discovery of “dark oxygen” challenges that theory.
A discovery from the "complete darkness" of the Pacific Ocean seafloor is testing the scientific consensus on how oxygen is made and has even called into question the origins of life on Earth, a new study says.Until now, scientists thought oxygen was only made using energy from sunlight.
While studying the nodules that contain metals, Sweetman and colleagues found them to carry a very high electric charge, "which could lead to the splitting of seawater into hydrogen and oxygen in a process called seawater electrolysis," SAMS explains."When we first got this data, we thought the sensors were faulty, because every study ever done in the deep sea has only seen oxygen being consumed rather than produced," Sweetman said.
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‘Dark oxygen’ on ocean floor may rewrite Earth’s origins of lifeAndrew Paul is Popular Science's staff writer covering tech news. Previously, he was a regular contributor to The A.V. Club and Input, and has had recent work featured by Rolling Stone, Fangoria, GQ, Slate, NBC, as well as McSweeney's Internet Tendency. He lives outside Indianapolis.
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