With modern seismic tomography, Earth scientists have discovered that above Earth's core-mantle boundary (CMB), about 2,900 ...

A picture of what West Antarctica looked like when its ice sheet melted in the past can offer insight into the continent’s future as the climate warms.

Drilling straight through the Earth, from the surface to the other side of the globe, is an idea that has captivated minds ...

Earth is not warming in a neat, even gradient. While the planet as a whole continues to heat up, one vast swath of the globe ...

Two perplexing structures deep inside Earth might be ancient remnants of our early planet. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Two ...

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.

Researchers have discovered chemical fingerprints of Earth's earliest incarnation, preserved in ancient mantle rocks. A unique imbalance in potassium isotopes points to remnants of “proto Earth” ...

Mars is known for its barren desert landscape and dry climate. But two recent studies go beneath the surface: They explore the interior of the red planet using seismic data from NASA's InSight mission ...

The researchers' findings were based on seismic readings from NASA’s InSight lander on Mars. Scientists were able to identify 8 Martian quakes with strong enough seismic activity that allowed them to ...

Forming a solid inner core requires more than just cooling—it depends on the precise chemistry of the molten material. The process can be compared to hail formation: water droplets in clouds must ...

All the activity on Earth’s surface — erupting volcanoes, shifting tectonic plates, restless seas and myriad forms of life — depends on the two-part engine under the hood. Directly beneath Earth’s ...

Earth’s deepest layers were not always solid rock blanketing a molten core. New simulations show a hidden sea of magma pooled above the core during the planet’s chaotic youth and how it still shapes ...