There, the particles excite gas and molecules in Earth's atmosphere, creating various colors depending on which gas is in the ...

But what if our oceans weren’t always blue? According to recent research, Earth may have had green oceans for billions of years before they finally took on their familiar blue hue. Scientists ...

Blue-green algae, also called cyanobacteria, were one of the earliest life forms on Earth and contributed heavily to the oxygenation of the planet. Specifically, they triggered the Great Oxidation ...

The reason Earth's oceans may have looked different ... have a greenish hue linked to a form of oxidized iron - Fe(III). Blue-green algae thrive in the green waters surrounding the island.

making the planet look like a pale blue dot from space. But Japanese researchers have made a compelling case that Earth's oceans were once green, in a study published in Nature. The reason Earth's ...

A new study from scientists at Nagoya University in Japan analyzes how the Earth likely sported a green hue in ... planet and snapped a photo. Now known as “The Pale Blue Dot”—a famous ...

In fact, there may have been a time when they weren’t blue at all. According to researchers at Japan’s Nagoya University, Earth’s earliest oceans glimmered with green hues for over 2 billion ...

Although it is common knowledge in modern times that the ocean is blue ... green ocean hypothesis' and explained why it is thought to have been green. About 2.4 billion years ago, the Earth ...

In their study published in the journal Nature Ecology & Evolution, the group used a variety of environmental factors to create a simulation of Earth ... green hue because iron hydroxide absorbs ...

For ages, Earth ... a blue planet, a vision largely shaped by the vast oceans that cover three-quarters of its surface. But what if this wasn't always the case, and our oceans used to be green?