German satellites TanDEM-X and TerraSAR-X spent five years orbiting Earth in close formation to create 3D global map of unprecedented accuracy Geographers around the world have a powerful new tool at ...

The contour lines and elevation markings in Google Maps can be hard to understand. If you're trying to get a sense of how steep the incline of a trail is before hiking it, the 3D view can help.

The NASA-ISRO Synthetic Aperture Radar (NISAR) satellite will map the elevation of Earth’s land and ice masses 4 to 6 times a ...