Colossal volcanic eruptions like the kind that may have obliterated the dinosaurs more than 65 million years ago are caused ...

They reveal that the chemical composition of the deep mantle has remained almost intact since the Earth's formation 4.5 ...

Scientists created a simulation showing that early Earth still retained chemical traces of its igneous youth, 4.5 billion years ago.

The deepest earthquake ever, which occurred off Japan in 2015, reached into Earth's lower mantle. (Image credit: Shutterstock) This makes the quake something of a head-scratcher.

Most of Earth's lower mantle is made of a magnesium silicate mineral called perovskite. In 2004, earth scientists discovered that under the conditions of the lower mantle, ...

A ‘ghost plume’ identified deep in the mantle beneath Oman suggests there may be more heat flowing out of Earth’s core than ...

A phase change in post-perovskite materials at the so-called D” discontinuity is also evidence for long-predicted slow, ...

A computer model visualization of material in the lower mantle. This material resembles a sunken plate but cannot come from subducted plates because of the lack of nearby subduction zones.

Ringwoodite is typically found in the transition zone between the upper and lower mantle, between around 255 and 410 miles (410 to 660 km) below Earth's surface and can contain much more water ...

Analysis of the incredibly rare gem suggests a soggy environment in the Earth's lower mantle. Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday.