This sample, which is more than six times longer than the previous core of mantle rock, has given us a glimpse into the composition of this mostly inaccessible layer of the Earth. You can read ...

Deep within Earth’s mantle lie two enormous, continent-sized structures known as LLVPs. Scientists once believed these ...

The mantle can, rarely, be sampled directly, as in the study discussed in the News & Views article on page 215 of this issue. But its composition can also be inferred from basaltic rocks in the ...

(Kateryna Kon/Science Photo Library/Getty Images) Millions of years of natural crust cycling mixed what was once Earth's ...

Continent-size islands deep inside Earth's mantle could be more than a billion ... Another feature, such as a change in composition, must be responsible for the unexpected result, the team suspected.

Scientists have revealed that two continent-size regions in Earth's deep mantle have distinctive histories and resulting chemical composition, in contrast to the common assumption they are the same.

Current estimates range anywhere from 30 to 100%, implying that much remains unknown about the processes that affect the composition and evolution of the Earth's mantle. With the osmium isotopic ...

“Cordless, battery-operated lamps offer another elegant way to enhance a mantle’s lighting and ambiance for spring. Their petite scale and warm glow add an inviting and intimate touch and are ...