Citizen Scientists

How many stars can you see from where you live, and what can they tell us about light pollution?

Your Mission Briefing

Have you ever wondered why some places have skies filled with stars, while others have hardly any? Globe at Night is a worldwide citizen science project that asks people to observe the night sky and help measure light pollution.

Your mission is simple! With a grown-up, head outside after dark, find the stars or constellation shown in the activity, and compare what you can see with the star charts. Then record your observation.

Every observation helps build a global picture of how bright our night skies are. Look up. Count the stars. Add your piece of the puzzle!

Explore more Missions