Ocean floor metals produce ‘dark oxygen’, research finds Financial TimesScientists discover ‘dark’ oxygen being produced more than 13,000 feet below the ocean surface CNN‘Dark oxygen’ in depths of Pacific Ocean could force rethink about origins of life The Guardian‘Dark Oxygen’ Discovered Coming from Mineral Deposits on Deep Seafloor Scientific AmericanDiscovery of ‘dark oxygen’ from deep-sea metal lumps could trigger rethink of origins of life Livescience.com