Satellites detected a mysterious gravitational change beneath Earth's surface, suggesting rapid movement of interior masses.

Earth’s deep interior may hold water equal to today’s oceans, challenging long-held views of how the planet became habitable.

Our Earth is structured sort of like an onion – it’s one layer after another. Starting from the top down, there’s the crust, which includes the surface you walk on; then farther down, the mantle, ...

Earth discovery reveals water trapped inside mantle rock, potentially holding more water than all surface oceans combined.

Volcanic eruptions can destroy essential infrastructure, ground air traffic for days, wipe out entire cities, disrupt the climate for years, and even wipe out life on Earth, so it's important to know ...

For decades, scientists have been baffled by two enormous, enigmatic structures buried deep inside Earth with features so vast and unusual that they defy conventional models of planetary evolution.

From the deck of a ship or the window of a plane, it feels obvious that “down” points toward Earth and “up” points toward the ...

Earth’s deep interior still shapes the world above your feet. Water trapped far below the surface helps control how rocks move, melt, and recycle through the mantle. Some of that water carries a ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. How does the inside of the Earth stay boiling ...