Scientists have discovered evidence that Earth's oceans were once green, hinting that this could be a marker of early life, ...

Imagine the world’s oceans with their beautiful blue color. Now, imagine that the same oceans were green. This is the intriguing possibility suggested by new research from Nagoya University in Japan.

Today, the world's oceans appear deep blue, contrasting with the light blue color of the sky ... green. Their simulation ...

Green waters signal the presence of ... There is a popular myth that the sky is blue because it reflects the ocean, but this is false. The atmosphere scatters blue light waves more than red ...

But hundreds of millions of years ago, most of the ocean was literally green ... which absorbs red and blue wavelengths and reflects green light. So with iron hydroxide and cyanobacteria, Earth ...