Dark oxygen was first discovered in 2015, but what is it? Learn how a deep-sea discovery could rewrite our understanding of ...

It’s easy to forget that beneath the sunlit waves, just past where the ocean’s blue turns to jet-black, lies a world teeming ...

The journey toward this discovery began more than a decade ago when Sweetman began analyzing how oxygen levels decreased further into the depths of the ocean. So it came as a surprise in 2013 when ...

In a groundbreaking discovery, scientists have identified a phenomenon they're calling "dark oxygen" — oxygen produced without any sunlight — 4,000 meters beneath the Pacific Ocean in the ...

Nearly three-fourths of Earth is covered by oceans, making the planet look like a pale blue dot from space. But Japanese ...

It will lead to more purple, brown, or green hues in coastal or stratified areas, with less deep blue color in water as ...

It’s hard to picture now, but Earth’s deep blue oceans were once green. According to a new study by Japanese researchers, ...

In the waters off Iwo Jima, a volcanic island in Japan’s Satsuma archipelago, the sea has a distinct green tint. It’s not ...