An amazing time lapse video has been released that shows the thousands of aeroplanes that come in and out of UK airspace each day.
Around 6,000 flights go in and out of the UK in a typical 24 hour period with more than half of those going in and out of London.
Managing that many planes in a relatively small space makes the UK one of the most complex air traffic control areas in the world.
And the company in charge of directing all those flights, National Air Traffic Services, has created this video of what they have to deal with.
This time lapse represents a typical day in the skies over the UK and shows just how busy it can get in the air above us.