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

Tom Howarth is a Newsweek reporter based in Bristol, U.K. His focus is reporting on nature and science. He covers climate change, biodiversity, extreme weather, zoonotic diseases and more.

Scientists have discovered ‘dark’ oxygen being produced more than 13,000 feet below sea level. Curious to know what it is? Read on. Ocean scientist Andrew Sweetman encountered a strange ...