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Heavy elements like oxygen are forged in the nuclear fires of stars. As the newfound oxygen existed when the universe was just 2% of its present age, this primordial element is a major head ...

Could lumpy metallic rocks in the deepest, darkest reaches of the ocean be making oxygen in the absence of sunlight? Some scientists think so, but others have challenged the claim that so-called ...

Metallic nodules found deep in the sea seem to be producing significant amounts of oxygen by some unknown mechanism, researchers revealed last year. Now, we may have found out how it is happening ...