Discovery of ‘dark oxygen’ from deep-sea metal lumps could trigger rethink of origins of life Space.comThe Mysterious Discovery of ‘Dark Oxygen’ on the Ocean Floor WIREDWhat is ‘dark oxygen’, found 13,000 feet under the sea? Al Jazeera EnglishScientists may have discovered ‘dark oxygen’ being created without photosynthesis NPRMystery oxygen source discovered on the sea floor — bewildering scientists Nature.com