DENVER, COLORADO, USA (April 20, 2021)—The National Audubon Society, the International Dark-sky Association, and Denver Audubon have teamed up to launch Lights Out Colorado, a new program that aims to help Coloradans save millions of birds as… Read more
Black History Month: A History of Forced Illumination
This year, in honor of Black History Month, we are starting conversations about racism and bringing awareness to the fact that light pollution disproportionately impacts the Black community. In fact, a recent study, which was… Read more
Bat Week: Shedding (Some) Light on Bats
In celebration of Bat Week, we have teamed up with Bat Conservation International (BCI) to learn about bats. This article was created in collaboration with BCI and written by Dr. Kristen Lear, Endangered Species Interventions… Read more
New Research Strengthens Ability to Monitor Light Pollution From Orbit
by John C. Barentine, Ph.D. Director of Public Policy Since the beginning of the Space Age, humanity has had a bird’s eye view of our planet, both day and night. On his first space voyage… Read more
Light Pollution Research Shows Humans and Wildlife Can Coexist
It is no secret that light pollution has an impact on wildlife. For billions of years, all life has relied on Earth’s predictable rhythm of day and night. It’s encoded in the DNA of all… Read more
Love the stars? Astronomers have a unique suggestion for Valentine’s Day
PRESS RELEASE: February 11, 2020 from National Science Foundation OIR Lab Few sights are more romantic than a star-filled sky, but there are fewer and fewer places on Earth where we can still enjoy a truly… Read more
What Does Lettuce Have To Do With My Night Sky?
by John C. Barentine, Ph.D. Director of Public Policy Residents of cities in towns in North America and Europe increasingly report strange glows in the night sky. Arizonans see their skies light up bright purple… Read more
Response to SpaceX Starlink Low Earth Orbit Satellite Constellation
Tucson, AZ – On May 23, 2019, the spacecraft company, SpaceX launched a group of sixty satellites into low Earth orbit (LEO). Due to their reflective solar panels and other metal surfaces, the satellites are… Read more
IDA Announces Lighting Guidelines for Electronic Messaging Centers
Today the International Dark-Sky Association released lighting guidelines for electronic messaging centers (EMCs). The guidelines, developed in line with Illuminating Engineering Society’s off-roadway sign recommendations, are the culmination of a two-year IDA process to address… Read more
Light Pollution Poses Threat to Migrating Birds
Across the northern hemisphere, the sights and sounds of migrating birds are a sure sign of spring. As temperatures warm and plants bloom, eager birders await the arrival of summer residents like warblers, tanagers, vireos… Read more