Dark Sky week 2023 is April 15-22

This year we encourage you to do three things

  1. Outdoor Lighting – improve your own home
  2. Globe at Night – participate in a citizen science project
  3. Read about a recent report, “Artificial Light at Night,” that summarizes the state of research on light pollution.

You can also read this general handout and learn more about light pollution below.

Sleeping Bear National Lakeshore - click to purchase the Dark Sky poster
(Click to purchase poster)