Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their formation but ours managed to hit.

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

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

Unusual isotopic ratio in samples brought back by Chang'e-6 reveals clues about the early history of Earth's satellite ...

The new plot twist is that in order to keep enough nitrogen and phosphorus near its surface, a planet has to start out with ...

In a stunning geological feat, scientists drilled over 1,200 meters into Earth’s crust, coming closer than ever to the mantle before time ran out.

A rare type of deep underground earthquake occurring in the Earth’s mantle has finally been isolated and mapped by Stanford researchers.

Geologists have spent decades trying to punch through Earth’s crust to reach the mantle, the vast rocky layer that makes up ...

Stanford University researchers have pulled back a curtain on a hidden part of Earth that rarely makes headlines. Their new work maps a strange kind of earthquake that starts deep below the crust, ...

Stanford researchers have created the first-ever global map of a rare earthquake type that occurs not in Earth's crust but in ...

The record-breaking mission offers an unprecedented opportunity to study the geology of our planet’s largest layer.