Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.

For decades, scientists have used seismic waves—created by earthquakes—to peer deep into the Earth’s interior. When seismic waves travel through or bounce off different materials inside the ...

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

Seismologists study Earth's deep interior by investigating how much ... between the Earth's core and mantle. And we see that seismic waves slow down there." Earth scientists therefore call these ...

A new study of decades worth of seismogram data shows that the surface of Earth’s iron and nickel core is more malleable than scientists thought.

Researchers have found new evidence for a massive subsurface ocean on Mars, again raising the possibility of microbial life.

Seismic waves suggest the planet's solid inner core is being pulled out of shape – and it has undergone these changes over just a few decades ...

Continent-size islands deep inside Earth's mantle could be more than ... "The only thing that we know of these is that when seismic waves travel through these places, they slow down." ...

Are subterranean lifeforms viable on Mars? A new interpretation of Martian seismic data by scientists Ikuo Katayama of ...

Researchers explore the likelihood that Earth's climate, as affected by solar heat, plays a role in seismic activity. Using mathematical and computational methods, they analyzed earthquake data ...

Seismic readings of the interior of Mars strongly suggest large ... a conclusion they base on the velocities of seismic waves detected during marsquakes. Now, researchers Ikuo Katayama of ...

These mountains are made of extremely dense and ancient material, giving scientists valuable clues about the Earth's early ...