The dark-sky movement is a campaign to reduce light pollution. The advantages of reducing light pollution include an increased number of stars visible...

astronomy Dark-sky movement The End of Night (book) International Dark-Sky Association (IDA) Light pollution Night sky Sky brightness Sky & Telescope...

neighbor's yard and windows). DarkSky was the first organization in the dark-sky movement, and is currently the largest. DarkSky's principal approach is to...

independently to create programs. DarkSky International (DarkSky) uses "International Dark Sky Reserve" (IDSR) and "International Dark Sky Park" (IDSP) among others...

movement, a campaign to reduce light pollution Dark-sky preserve, areas protected for naturally dark night skies Nighttime Olbers' paradox, the "dark...

international dark-sky movement. It is run by the British Astronomical Association (BAA) and affiliated with the International Dark-Sky Association (IDA)...

International Dark Sky Week (formerly the National Dark Sky Week) is held during the week of the new moon in April, when people worldwide may turn off...

The settlement movement was a reformist social movement that began in the 1880s and peaked around the 1920s in the United Kingdom and the United States...

separate world with its own climate, no real night/day cycle, and an artificial sky that is always grey. Hagler, Yoav (November 2009). "Defining U.S. Megaregions"...

The City Beautiful movement was a reform philosophy of North American architecture and urban planning that flourished during the 1890s and 1900s with the...