There are certain things that have become mainstays on Earth. One of these things is the ocean being blue, there are ...

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

Earth's oceans could one day turn purple. Nearly three fourths of Earth is covered by oceans, making the planet look like a ...

Nope, it's not your imagination! The ocean is actually getting greener, according to scientists, and we found out why.

That led them to consider that these ancient aquatic organisms actually fed on iron to fuel photosynthesis, and they must ...

Green oceans on early Earth, shaped by iron, pushed microbes to evolve light-absorbing tools that worked in green light.

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