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 ...

Our planet's interior is much too deep and hot to explore with probes, so scientists rely on seismic waves to understand and model its structure. Seismic waves are shock waves tha ...

Scientists uncover hidden land under Iceland, questioning our understanding of Earth's continents and tectonic plates.

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 ...

Together, these layers protect us from the sun’s harmful radiation and keep temperatures on Earth habitable for ... Climate change caused by human activity has also affected the atmosphere.

Earth science concentrates on investigating how the planet works and why. This field delves into the many layers of the Earth ... as by monitoring seismic wave activity through machinery.

The layer acts as a skin for the Earth, protecting landscapes and reducing long-term damage. But climate change and human activities are ... covering science, the environment, climate and business.

Geophysicists find areas that resemble the results of tectonic plate collisions — far from any area of such activity.