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

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 ...

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

The U.S. military says it has boarded a sanctioned oil tanker in the Indian Ocean ...