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man looking though hands
Is it nighttime? Go outside right now.  Look through your hands as if you were holding a small telescope.  How many stars do you see?

If you see any stars through the opening in your hand, you can become an international citizen-scientist!

GLOBE at Night (GaN) is an annual world-wide campaign to raise public awareness on the impact of light pollution. GaN invites you to record the brightness of your night sky by matching the appearance of the constellations of Orion or Leo with star maps of progressively fainter stars.

You can easily submit your measurements by computer or smart phone. smart phone image with link to web app


From measurements taken all over the world, an interactive map is created.  Over the past 7 years, people in 115 countries have contributed over 83,000 measurements, making GLOBE at Night the most successful, light pollution citizen-science campaign to date.

In 2013 there are five opportunities to participate in GLOBE at Night:

  • January 3 - 12, 2013
  • January 31 - February 9, 2013
  • March 3 - 12, 2013
  • March 31 - April 9, 2013
  • April 29 - May 8, 2013

One of the best ways to learn to appreciate the dark sky is with your local astronomy club. Participate in GLOBE at Night with them!


Experience the joys of learning about our Earth and sky

Join our vibrant stargazing community!

We invite you to join the NASA Night Sky Network stargazing community on Facebook and Twitter for sky charts, beautiful images, and lively conversation. 

Find star parties held by astronomy clubs in your area quickly using these apps or use the website!



Go StarGaze, the NASA Night Sky Network astronomy app, developed by the Astronomical Society of the Pacific, helps you find astronomy clubs and their stargazing events on the go!





 
Distant Suns, your personal guide to the cosmos, lists Night Sky Network astronomy club star parties, safe solar gazing events, and lectures in the main navigation bar. Distant Suns is available on iPhone, iPad, Kindle, and NOOK.




SkySafari, a powerful planetarium that fits in your pocket, lists Night Sky Network astronomy club star parties, safe solar gazing events, and lectures in the help menu. SkySafari is available for Android and the iPhone, iPad, and iPod Touch.




Clear skies and happy stargazing!


The NASA Night Sky Network is managed by the Astronomical Society of the Pacific in cooperation with NASA