From a digital vantage point in orbit, scientists have mapped every building on Earth—2.75 billion structures, all in 3D. Researchers at the Technical University of Munich (TUM) have unveiled the ...

Google Earth combines satellite imagery and aerial photography to create a rich picture of earth. You can use Google Earth online, on your smartphone or tablet, or on its desktop app — all for free.

Exoplanets are planets outside Earth's solar system that most often orbit a star. Astronomers have managed to bring an exoplanet into unprecedented focus by using a technique the researchers call 3D ...