German TanDEM-X satellite seeks 3D view of Earth

The TanDEM-X satellite has blasted into orbit on a mission to acquire the most precise 3D map of the Earth's surface. The German radar spacecraft will fly in formation with an identical platform called TerraSAR-X launched in 2007. Together, the pair will measure the variation in height across the globe to an accuracy of better than two metres. Their digital elevation model will have myriad uses, from helping military jets fly ultra low to showing relief workers where an earthquake's damage is worst. More

(Source: BBC News - Jun 22)