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New Research Strengthens Ability to Monitor Light Pollution From Orbit

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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

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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

Love the stars? Astronomers have a unique suggestion for Valentine’s Day Thumbnail

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?

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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

Response to SpaceX Starlink Low Earth Orbit Satellite Constellation Thumbnail

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

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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

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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

Protect Our Species from Light Pollution this Earth Day

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Established in 1970, Earth Day has brought attention to the many issues impacting the environment for decades. The Earth Day Network estimates that over one billion people in 192 countries will take part in Earth… Read more

“Radiance Light Trends” Shows Changes in Earth’s Light Emissions

“Radiance Light Trends” Shows Changes in Earth’s Light Emissions Thumbnail

Many scientific datasets from satellites are in principle available for free, but that doesn’t mean that they are actually accessible to the wider public. A new web application aims to change that, at least for… Read more

Pollinators: switch street lights off at midnight to help moths and nocturnal wildlife

Pollinators: switch street lights off at midnight to help moths and nocturnal wildlife Thumbnail

  by Callum Macgregor Postdoctoral research associate, University of York Conservation is often a conflict between the demands of development and a desire to do what is best for the environment. It’s rare that we get… Read more