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 ...

It seems as if Earth's atmosphere is incredibly thin, wrapped tightly around our planet. In fact, the atmosphere consists of multiple layers, with some scientists of the opinion that the atmosphere ...

It’s not much of a stretch to say that Earth’s inner structure, especially the innermost spherical core, has stupefied ...

The layer acts as a skin for the Earth ... It covers approximately 12% of the Earth's surface and can play a vital role, especially in dry ecosystems, by preventing soil erosion and helping ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. A group of scientists has discovered a hidden layer of molten rock under the Earth’s ...

The oxygen-rich ozone layer was also established, shielding the Earth's surface from harmful solar radiation. The first multicelled animals appeared in the fossil record almost 600 million years ago.