Google Earth has given birth to a fantastic wealth of layers and informative projects — like the Google Earth Darfur project — but creating and maintaining Google Earth data can be a pain. Fortunately ...

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, about 1,500 ...

Scientists have discovered yet another layer deep inside the core of the Earth, a new study suggests. “Traditionally we’ve been taught the Earth has four main layers: the crust, the mantle, the outer ...