Deep beneath the ocean's surface, in the pitch-black abyss, scientists have uncovered a fascinating phenomenon: "dark oxygen.

"Dark oxygen" is being produced deep in the ocean, and scientists are baffled by the strange phenomenon, according to a new study. In science class, kids learn that plants need sunlight to do ...

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The oxygen desaturation index (ODI) measures how often and how much your blood oxygen level drops while you sleep. A normal ODI is fewer than five desaturation episodes per hour of sleep, and anything ...

Oxygen is vital to many medical procedures. But a safe, affordable supply is severely lacking around the world, according to a new report. By Apoorva Mandavilli At the height of the Covid-19 pandemic, ...

Coral reef research has focused on the twin evils birthed by record-high greenhouse gas emissions: warming oceans and increasingly acidic seawater. These global threats are caused by seawater ...