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iPad and iPhone showing the webapp interface
View the data that has been submitted from around the world on our interactive map viewer. See how your city did with our map app.

Citizen Scientists from around the world contributed 14,419 data points this year!

Less of Our Light
for More Star Light

Saving Energy;
Saving our Night Skies

The GLOBE at Night Team would like to express their thanks to all the participants worldwide who contributed measurements to the GLOBE at Night 2012 campaign. Your measurements on a local level make a global difference. Look soon for a summary of overall numbers and general analysis of the 2012 data. Next year's campaigns are tentatively scheduled for the first 10 days of January through May. We look forward to your participation in 2013!

Downloadable Resources for the 2012 Campaigns

GLOBE at Night postcard
Postcard (English) | Postcard (Spanish)

GLOBE at Night one pager
Flyer (English) | Flyer (French) | Flyer (Spanish) | Flyer (Polish) | Flyer (Galician)

Teacher Activity Packets and
Family Activity Packets are available in the following translations: English, Spanish, French, German, Greek, Hungarian, Indonesian, Japanese, Polish, Portuguese, Slovak, Turkish, Italian, Chinese and Galician.

And the
Dark Skies Rangers Program is also available.

More Resources

Five Easy Star-Hunting Steps:

1) Find your latitude and longitude.

2) Find Orion, Leo or Crux by going outside more than an hour after sunset (about 8-10pm local time).

3) Match your nighttime sky to one of our magnitude charts.

4) Report your observation.

5) Compare your observation to thousands around the world.


Find us on Facebook! | Follow GLOBE at Night on Twitter!

Read GLOBE at Night News.

Subscribe to our mailing list to receive updates and results of this campaign!

About GLOBE at Night

The GLOBE at Night program is an international citizen-science campaign to raise public awareness of the impact of light pollution by inviting citizen-scientists to measure their night sky brightness and submit their observations to a website from a computer or smart phone. Light pollution threatens not only our “right to starlight”, but can affect energy consumption, wildlife and health. People in 115 countries contributed over 76,000 measurements during the campaigns each winter/spring over the last 7 years, making GLOBE at Night the most successful light pollution awareness campaign to date.

Check out the web application data submission process. The GLOBE at Night website is easy to use, comprehensive and holds an abundance of background information. The database is usable for comparisons with a variety of other databases, like how light pollution affects the foraging habits of bats.

Learn more about GLOBE at Night from the 365 Days of Astronomy Podcasts on January 1, February 1 and March 1 at http://365daysofastronomy.org. Hear our latest podcast on GLOBE at Night in the March 30 episode.

2011 Results Summary

More countries than ever before participated in the 2011 GLOBE at Night campaign. 14,249 observations were taken by participants in 115 countries. Click links below to view results.

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