Related: Scientists discover Earth's inner core isn't just slowing down — it's also changing shape Others have suggested that ...

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

Take a deep dive into the ocean’s secrets. ExtremeTech reveals its hidden layers and life forms. Discover the depths of our ...

Narrator: The Mariana Trench is the deepest point on Earth. So deep that if you dropped Mount ... which you normally wouldn't find down here, more than 10,000 meters down. Because once you pass ...

Since the 1990s, models and seismic measurements have indicated that Earth’s iron-nickel inner core moves at its own pace. Over decades, the rotation of the inner core speeds up and slows down ...

Iron sinks deep inside Earth and forms its core ... and heavy rains pour down on the planet. After several hundred million years of falling rain, great oceans form. 4,055 mya: Oldest known ...

There's a lot of debate about what LLVPs are. Some studies have suggested that they're material from the ancient Earth — either a layer of primordial unmixed rock from the planet's formation or ...