Light pollution is the brightening of the night sky from artificial light, such as lights from our homes and schools.
Too much artificial light affects astronomer's ability to see and research the night sky, plus it can affect the environment and nocturnal animals.
Watch our fun video below [2:38] to learn more about light pollution and how you can help protect the dark sky.
We all have a role to play in protecting the dark night sky.
Here's what you can do:
Page last updated: 07/05/2019