International Dark Sky Week 5 - 11 April, 2013

Celebrate the stars! Created in 2003 by high-school student Jennifer Barlow, IDSW has grown to become a worldwide event and a key component of Global Astronomy Month. The goals of IDSW are to appreciate the beauty of the night sky and to raise awareness of how poor-quality lighting creates light pollution.

Light pollution is a growing problem. Not only does it have detrimental effects on our views of the night sky, but it also disrupts the natural environment, wastes energy, and has the potential to cause health problems.

Here are some ways that you can spread the word about IDSW during April 5-11 — and all year long:

• Join us Online! Post about dark skies awareness on Facebook, Twitter, and any other social media you like. Follow us on Facebook, Twitter, G+, and/or Pinterest. Find out more about our participating partners. And if you would like to become a partner email  This e-mail address is being protected from spambots. You need JavaScript enabled to view it  to learn out how you can too!
• Check around your home.  Make sure your outdoor-lighting fixtures are well shielded — or at least angled down — to minimize “light trespass” beyond your property. Do you have security lights that stay on all night? Consider adding a motion-detector, which can pay for itself in energy savings in just a few months. You’ll find lots of great suggestions in  “Good Neighbor Outdoor Lighting”  and you can perform your own  outdoor lighting audit.
• Talk to your neighbors.  Explain that bright, glaring lights are actually counterproductive to good nighttime vision. Glare diminishes your ability to see well at night, because the pupils of your eyes constrict in response to the glare — even though everything else around you is dark. Show them  this handout.
• Ask your local library  if you can put up an  IDA poster  showing good and bad lights. Include a photo of the  Earth at night, and take some pictures around town that show examples of good and bad lighting.
• Become a Citizen Scientist with GLOBE at Night and similar programs, observe light pollution wherever you are and contribute to reports coming in from across the globe about light pollution. Or join GLOBE at Night's Adopt-A-Street program and 'map' light pollution in your community. 
• Become a Dark Sky Ranger. Teachers and families can do these activities that include an outdoor lighting audit, a game, and hands-on crafts to help visualize the night sky better. In English. In Portuguese.
• Attend or throw a star party!  International Dark Sky Week is a great opportunity to dust off the old telescope in your attic and use it share in the wonder of the universe with your family, friends, and neighbors. Visit the  Night Sky Network  to find a  calendar of star parties  or to  find an astronomy club  in your area.     Click here  to find out what’s up in the sky.  This activity book  is full of great activities for budding stargazers of all ages!
• Photograph the sky  and enter it in the 2013 International Earth and Sky Photo Contest, run by The World at Night, or photograph some constellations and submit the pictures to the  Dark Skies Photo Project  to measure light pollution. 
• Download, Watch, and Share "Losing the Dark," IDA's public service announcement. Learn more.

Look for many more IDSW Events at the websites below.

For more information, here are some great resources to learn about outdoor lighting and light pollution:

Global Astronomy Month, your gateway to a month-long celebration of the cosmos.

GLOBE at Night, a citizen-science program to measure light pollution from your own back yard.

Where to Buy  lighting fixtures that are dark-sky friendly

IDA Practical Guides and brochures  that explain light pollution’s negative effects.

2013 International Dark Sky Week Events (more coming soon)

April 5 - 11 Night Sky Network Events (over three dozen listed in this link!).

Events taking place at International Dark Sky Places during International Dark Sky Week and all year long