A project to bring the size of the Solar System down to Earth - or rather to the UK - has been launched.
Spaced Out, as it is called, aims to create the world's largest scale model of the Solar System.
The model will be constructed across the UK, with many planets located in school grounds.
The Sun will be based in Manchester, with Earth about 10 miles away. Pluto will be in Fort William, Scotland and Halley's Comet in London.