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

The new research, published recently in Nature, used numerical simulations to reconstruct the underwater light environment of ...

The ocean was most likely green, and it might not have been blue forever. Japanese scientists from Nagoya University first ...

In the waters off Iwo Jima, a volcanic island in Japan’s Satsuma archipelago, the sea has a distinct green tint. It’s not just a trick of the light — it’s caused by microscopic particles of oxidized ...

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

The far-reaching glow of bioluminescence has haunted sailors for centuries across the Indian Ocean. Now scientists believe ...

Analysis of the sediment in Belize’s Great Blue Hole shows a concerning trend. Blue holes, the name for collapsed limestone ...

As oxygen accumulated, the iron oxidized, eventually turning the oceans blue, and future changes could shift ocean colors again ... algae grow better in green light, supporting the theory that ...

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.

Imagine plunging into a world where sunlight barely penetrates, and the darkness is suddenly broken by mysterious flashes of ...

But while lifeless during that time, the planet was already covered by vast oceans dotted with hydrothermal vent systems that ...