SUNSET: 
Chilean Observatories Saved from Industrial Megaproject
The proposed installation — less than 10 miles from Paranal Observatory — sparked international concern. Now it’s canceled.
60-Second Astro News: Light Pollution, Birds, and Zambuto Mirrors
In this roundup of recent news, birds react to light pollution and a respected mirror maker calls it a day.
Light Pollution: What Is Brightening Our Night Skies?
Walking through neighborhoods, volunteers identified sources of light pollution —surprisingly, streetlights weren’t the main culprit.
Space Industry Adds Threats to Astronomy, Light Pollution Remains a Big Problem
Multiple effects from ever-increasing satellite launches could impact future observations; the biggest threat to astronomy, though, is still coming from the ground.
Industrial Project Threatens Dark Chilean Skies
An industrial megaproject in Chile is threatening the pristine darkness over Paranal, one of the world’s most important observatories.
"Discover the Night" During International Dark Sky Week, April 15–22
Protect the night sky — join the International Dark-Sky Association for activities during International Dark-Sky Week.
Satellites and Space Debris Are Polluting Our Night Skies
Astronomers are sounding the alarm about low-Earth orbit satellites and space debris as significant contributors to light pollution that will affect even the remotest earthbound stargazer.
Satellite Trails Mar Hubble Images
An accounting of satellite streaks across two decades of Hubble Space Telescopes finds their appearance is increasing.
Light Pollution Is Increasing Even Faster Than We Realized
The average brightness of the night sky is increasing by 10% every year, making the stars less visible.
Light Pollution Is Creeping Up on the World's Observatories
Astronomical observatories enjoy some of the world’s darkest night skies. But even there light pollution is spreading, a new study suggests.
What we know about Light Pollution – and What We Don’t
The International Dark-Sky Association’s has summarized more than 300 peer-reviewed studies on the effects of artificial light at night in an effort to help dark-sky advocates.
Celebrate Dark Skies This Week, April 22–30
Are you interested in combating light pollution? International Dark Sky Week, which starts today, offers events in which you can learn how.
Under One Sky: Let's Address Light Pollution Together
Concerned about light pollution? Join a virtual conference this weekend that looks at ongoing global efforts to mitigate it.
Streetlights to Satellites: Taking Light Pollution to the United Nations
The United Nations' Office of Outer Space Affairs is considering issues of light pollution spanning from streetlights to satellites.
Stargazer's Corner: Adventures Under the Night Sky
The Pandemic and Light Pollution
Student Kathryn Huth set out to conduct astronomical experiments when she noticed that — amidst the pandemic — she could see more stars in the sky.
Discover the Night: International Dark Sky Week is Here!
Light pollution is insidious in today’s world. This International Dark Sky Week, become inspired to see what you can do to raise awareness.
Under One Sky — Help Address Light Pollution
Do you care about protecting the night sky? Join the International Dark Sky Association’s virtual conference this weekend.
Astronomers Dim Street Lights to Home in on Light Pollution
Street lights contribute to light pollution, but they are far from the only culprits — and fixing street lights is far from the only solution.
The Lost LED Revolution: Light Pollution Is Increasing
The transition from sodium lights to LEDs, the so-called “lighting revolution”, was supposed to reduce energy consumption and bring back the starry sky, but new satellite data indicate it’s not working out that way.
