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Light pollution is the human-made alteration of outdoor light levels from those ocurring naturally. It has harmful effects on:

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Under One Sky, DarkSky International’s annual global conference, returns November 6–7, 2026! This 24-hour virtual event brings together a growing international community dedicated to protecting dark skies and the nighttime environment, featuring engaging workshops and inspiring stories from around the world.
Visit the conference website for more information.
You can find recordings from Under One Sky 2024 on DarkSky’s YouTube channel, as well as past event archives, at the links below.
2024 Conference
2023 Conference
2020 Conference
2019 Conference
2018 General Meeting
2017 General Meeting
Highlights from the International Dark-Sky Association’s 2022 global conference — Under One Sky.
This year, we are very pleased to introduce engagement workshops to our Under One Sky conference!