Researchers recently discovered a huge chain of extinct volcanoes buried deep below South China that formed when two tectonic ...

Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

The origins of plate tectonics on Earth are hotly debated, but evidence from Australia now shows that parts of the crust ...

Gigantic hidden fortresses discovered 1,800 miles underground in Earth's mantle, rewrite how the planet's interior works.

Scientists agreed the rocky outcrops in a remote part of Quebec, Canada, were ancient. But were they really Earth’s oldest? New research suggests they are.

Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.

Scientists have uncovered ancient human migration routes hidden beneath the sea, revealing how early humans moved between ...