Could there be an ocean buried deep beneath our feet, hidden some 700 kilometers below the Earth’s surface? If the recent ...

When scorching columns of rock, known as deep mantle plumes, first rise from depths of nearly 3,000 kilometers (almost 2,000 ...

Some studies have suggested that they're material from the ancient Earth — either a layer of primordial unmixed rock from the planet's formation or a leftover hunk of the giant space rock that ...

What's inside Earth quiz: Test your knowledge of our planet's hidden layers Two enormous blobs deep inside Earth appear to be the remnants of oceanic crust that was pushed down into the mantle ...

Normally, younger rocks are deposited above older ones, forming predictable geologic layers. In the North Sea, this process ...

Did Earth Really Once Have a Ring Around it? According to One Theory, Yes — And It Left A Mark 21 craters in ancient rock layers are all that's left of Earth's once flashy accesory.

Not long ago it was thought Earth’s structure was comprised of four distinct layers: the crust, the mantle, the outer core and the inner core. The findings, published in Nature Communications ...

Deep below the Earth's crust, molten rock rises and falls, driving the movement of tectonic plates on our planet's surface — and for some time, researchers have debated whether the moon also has ...

Rare earth elements are necessary for modern technology, including green energy, but they only come from a few sources around the globe. New research has discovered them hiding in coal mines in ...