The Earth has a shell-like structure. It is divided into a core (inner and outer core), a mantle (lower and upper mantle, separated by a transition zone), and the earth's crust. You are free to share ...

The Earth Dynamics Geodetic Explorer, or EDGE, will map the Earth’s topography, vegetation, ice and coastal regions with unprecedented 3D detail. Set to launch in 2030, the new satellite will provide ...