Light pollution blots out our view of the cosmos and disrupts wildlife at night. Prompted by a question from a listener, we look at the best ways to combat it. Show more
Discover 11,128,835 listings and 277,895 playable programmes from the BBC
Light pollution blots out our view of the cosmos and disrupts wildlife at night. Prompted by a question from a listener, we look at the best ways to combat it. Show more