The sun may rise every morning, but the amount of sunlight reaching Earth's surface can substantially vary over decades, according to a perspective article led by an international research team.

The movement of tectonic plates shapes the rocky features of Earth's surface. Plates' convergence ... as well as in the East European Plain. This pattern of swells and basins may control—to ...

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 ...