Scientists have long known that Earth's core is mostly made of iron, but the density is not high enough for it to be pure ...

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...

Hydrogen reserves in Earth’s core large enough to supply at least nine oceans may influence processes on the surface today.

An experiment to quantify the amount of the universe’s lightest element in Earth’s core suggests that the planet’s water has ...

Deep beneath the familiar blue of the oceans, Earth may be hiding a far larger sea of potential. New high pressure experiments suggest the planet’s metallic heart could store hydrogen equivalent to ...

A new study suggests that some of the world’s oxygen-deprived oceans could eventually regain higher oxygen levels in the ...

Most people know plastic pollution is bad news. But a small group of scientists says that we should pause all ocean plastic cleanup efforts.

Oceans absorb about a quarter of the carbon dioxide released by human activity every year, slowing the pace of global warming ...

Scientists studying ancient ocean fossils found that the Arabian Sea was better oxygenated 16 million years ago, even though ...

For ages, Earth has been known as 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 ...

A new study suggests the world's oxygen-depleted seas may have a chance of returning to higher oxygen concentrations in the ...