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

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

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

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

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

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

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

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

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