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

To observers from outer space, Earth's vast oceans and verdant landmasses make it appear as a blue ... planet that scarcely ...

THE Earth’s ocean could one day turn purple – and scientists say it used to be a totally different colour. The Earth’s seas ...

Earth’s oceans once looked green—and could turn purple or red due to climate and volcanic changes. Find out what it means for ...

The first life forms used retinal instead of chlorophyll, absorbing green light and reflecting red and blue—turning the planet an eerie purple. Chlorophyll wasn’t always king. Retinal ...

A new study suggests Earth's oceans may have been green during the Archean eon, around 3.8 to 1.8 billion years ago. The ...