For decades, geophysicists have known that something unusual happens nearly 2,900 kilometres beneath our feet. Seismic waves from earthquakes suddenly speed up in a thin zone just above Earth’s core.

Seismic data from NASA’s InSight mission reveals a hidden compositional boundary inside Mars that matches what forms inside ...

A new atlas charts the global distribution of unusual, critical-metal-bearing igneous rocks, finding that they often form near the thick and ancient cores of the world's major continents. Researchers ...

Far out in the North Atlantic, Bermuda sits atop a broad rise in the seafloor that has troubled Earth scientists for decades. Many volcanic ocean islands rest on similar swells, which are usually ...

Scientists at the University of Southampton have uncovered evidence from ancient rocks that Earth's climate continued to fluctuate during its most extreme ice age—known as Snowball Earth. During the ...