Every night sleepless cities and well-lit suburbs pour gigawatts of uncontained light up into the stratosphere. Not only is this a massive waste of energy, but it also pollutes our skies by drowning out the natural splendour of Earth's view of the cosmos.
Fortunately, Dark Sky programs around the world seek to protect and preserve dark, unpolluted night skies.
If you're wondering what you might be missing out on, you're in the right place. Your Sky simulates the light pollution in your location so you can see how your sky compares...