Energy Waste

Creating codes and statutes

Astronomy

Establishing quality requirements for outdoor lighting is an effective way to protect local character, enhance visual safety, and mitigate …

June 30, 2025

Artificial Light at Night: State of the Science 2024

News

by John Barentine Dark Sky Consulting, LLC As more people become increasingly aware of light pollution, accessible scientific information …

June 4, 2024

Artificial Light at Night: state of the science 2023 report released

News

by John Barentine Dark Sky Consulting, LLC To successfully communicate with the public and decision-makers, dark-sky advocates must have …

July 11, 2023

Our positions and statements

Astronomy

DarkSky’s positions and statements address critical issues related to light pollution and dark skies, guiding our priorities, communications, advocacy …

December 17, 2025

Light is Energy: Estimating the Impact of Light Pollution on Climate Change

News

Globally we spend at least $50 billion in energy costs each year to produce light that escapes into space. …

August 2, 2022

Artificial Light at Night: State of the Science 2022 Report

News

IDA’s State of the Science 2022 report is a high-level overview of the best of our scientific understanding of …

June 9, 2022

New App Aims to Better Understand Nighttime Satellite Data

News

A team of community scientists and researchers from the Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences …

August 27, 2021

Call for Abstracts for the 2018 Annual General Meeting

News

Looking Up! 30-Years of Dark Sky Advocacy IDA’s 30th Annual General Meeting November 9-11, 2018 | Snowbird, Utah The …

May 1, 2018

Five Years of Satellite Images Show Global Light Pollution Increasing at a Rate of Two Percent Per Year

News

Five years of advanced satellite images show that there is more artificial light at night across the globe, and …

November 22, 2017

Small Changes, Big Impact

News

IDA approved Dark Sky Friendly fixtures light only the ground where light is needed. It’s a simple idea that …

August 8, 2017

International Dark Sky Week: 5 Ways to Support Dark Skies Right Now

News

The nighttime environment is a crucial natural resource for all life on Earth, but the glow of uncontrolled outdoor …

April 27, 2017

SKYGLOW: Hunting the Dark

News

Pursued in collaboration with the International Dark-Sky Association, SKYGLOW explores the history and mythology of celestial observation and the …

April 12, 2017