New study reveals that Earth's inner core is undergoing unexpected structural changes, challenging long-held assumptions ...

Research on hidden structures deep within Earth’s mantle challenges theories about our planet’s middle layer and could ...

A new study out this week said that the Earth's inner core is less solid than previously thought. Scientists still have ...

Researchers studying decades of earthquake data say they have found the first evidence that, in addition to spinning backward ...

First, a few basics. The Earth’s inner core, which is smaller than the moon, is solid iron and nickel. It’s surrounded by a layer of molten metal known as the outer core, followed by the Earth’s ...

Scientists of course cannot cut into Earth and directly observe its insides. Instead, their knowledge is inferred from the ...

Many geologists attribute the great variation in the temperature gradient to complex irregularities in the structure of the earth's crust. Some even maintain that the interior of the earth is cold ...

LOS ANGELES — For decades, geophysicists believed they understood the limits of where earthquakes could occur in Earth’s interior. Then in May of 2015, a magnitude 7.9 earthquake struck at an ...

Nobody knew what they are, and whether they are only a temporary phenomenon, or if they have been sitting there for millions ...

Seismologists study Earth's deep interior by investigating how much these tones are "out of tune," because whole Earth oscillations will sound out of tune or less loud when they encounter anomalies.

This discovery was made possible through a groundbreaking technique that maps seismic waves traveling through the Earth's ...