Airplanes in flight from Space

This map made by ESA CubeSat GomX-3, shows the airplanes in flight during the last six months.

The tiny 3-unit CubeSat built by GomSpace in Denmark, since it was released from the International Space Station on 5 October 2015, has picked up millions of ADS-B signals which give flight information such as speed, position and altitude.

All aircraft entering European airspace are envisaged to provide such automatic surveillance in the coming years.

source ESA