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Researchers have drilled a window into the layer of our Earth that is responsible for volcanic activity, crust formation, and earthquakes. The mantle is incredibly difficult to study because it’s so ...

WASHINGTON (Reuters) - Scientists using an ocean drilling vessel have dug the deepest hole ever in rock from Earth's mantle - penetrating 4,160 feet (1,268 meters) below the Atlantic seabed - and ...

Scientists have recovered the first long section of rocks that originated in the Earth's mantle, the layer below the crust and the planet's largest component. The rocks will help unravel the mantle's ...

Scientists have drilled a hole thousands of feet beneath the floor of the North Atlantic Ocean and extracted rocks from Earth’s mantle. It’s the deepest hole ever dug to collect mantle rock, according ...

To find a modern analog that may help explain the origins of life on Earth, scientists are searching under the sea, specifically, where rocks from the Earth’s mantle are exposed in direct contact with ...

A thin slice of the ancient rocks collected from Gakkel Ridge near the North Pole, photographed under a microscope and seen under cross-polarized light. Credit: E. Cottrell, Smithsonian. If you’re ...

If you were to slice through it, you would see the Earth is divided into distinct layers. On top is the relatively thin crust where we live. Beneath that is the 2,900 km thick mantle layer. Then, ...

About 4.5 billion years ago, a Mars-sized object smashed into the young Earth, spraying debris that coalesced to form the moon, many scientists think. Some remnants of that object, called Theia, exist ...

The researchers say the rocks recovered from the mantle bear a closer resemblance to those that were present on early Earth rather than the more common rocks that make up our continents today.