Our planet's interior is much too deep and hot to explore with probes, so scientists rely on seismic waves to understand and ...

This layer of the atmosphere is notoriously difficult to study, but new research sheds light on its mysterious processes.

A new way of measuring structures deep inside Earth has highlighted numerous previously unknown blobs within our planet's ...

The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball ...

Scientists have always been curious about the atmosphere surrounding us, but in the past, they could not just hop on a spaceship to see what was up there. Instead, scientists hiked up high ...

The Earth's mantle isn't just a hot, dense layer of rock; it's a dynamic and diverse engine driving our planet's geology.

Scientists discovered plate anomalies in Earth's mantle using seismic wave analysis. These mysterious structures challenge ...

This article was originally published with the title “ The Plastic Layer of the Earth's Mantle ” in Scientific American Magazine Vol. 207 No. 1 (July 1962), p. 52 doi:10.1038 ...

There's a lot more to Earth than meets the eye. Far from being just a roundish rock barreling through space, our planet is composed of several layers held together by intense forces of gravity.