While traveling by air yesterday, it got me wondering how busy our skies are. The answer might surprise you. The following image shows actual flights in progress over Europe at 13:10 BST today. (Click image for a larger view).
According to data from FlightRadar24 there were 8830 Flights in progress over world, 2920 of them over europe. This only includes flights on which there was data available, the real figure may even be slightly higher.