It creates the Earth's magnetic field and is about 1,400 miles (2,300 kilometers) thick. The next layer is the mantle. Many people think of this as lava, but it's actually rock. The rock is so hot ...

Earth is divided into four layers: the inner core ... pushed upwards by the force of the plates' movement. Tall, steep volcanoes can also form as a result of the denser rock melting and the ...

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 ...

A giant patch of black, fossilized lava that was spewed across the Sahara desert over millions of years looks like an eerie, ...

High-resolution images now reveal several dozen lava lakes, researchers report in the February Journal of Geophysical Research: Planets. These lakes are far larger than their analogs on Earth ...

Massive beds of ancient lava found around the world depict an Earth 65 to 70 million years ... concentrations of iridium at the geological layer associated with the dinosaur extinction could ...