When Earth is viewed from space, some problems seem insignificant. But this perspective also shows that even the tiniest shifts in the earth's surface can pose great dangers - for example, when they cause earthquakes. The German Aerospace Centre, the Technical University Munich, and the Institute for Geosciences and Natural Resources have developed a digital map that shows ground movements throughout Germany. State-of-the-art satellite technology measures where the earth's surface rises, sinks, or shifts down to the millimetre. This prevents buildings from being built on unsafe ground.