International Dark Sky Week - April 13–20, 2026
What better place is there to celebrate International Dark Sky Week (April 13–20, 2026) than in the world’s first—and largest—International Dark Sky City? FDSC is working with partners in and around Flagstaff to host a week of nightly stargazing events.
What is International Dark Sky Week?
International Dark Sky Week is a global celebration of the night.
From the darkness needed for a restful night’s sleep to the activities we enjoy beneath the stars, the night is filled with wonder and importance. Dark nights sustain critical wildlife ecosystems, strengthen the well-being of our communities, enable scientific discovery, and preserve shared cultural knowledge and traditions.
Join us this April as we “go dark” to explore the night and take action to protect dark skies worldwide.
