Category: Resources | Page 3 | DarkSky International

Software and mobile apps

Resources

Software and mobile apps can help us appreciate the night sky, measure light pollution, and much more.

December 2, 2025

Useful links

Resources

Some of the tools and sites we use from our partners, friends, and colleagues.

June 12, 2026

Videos

Resources

Enjoy watching some of our favorite videos on light pollution. For more videos on light pollution visit our YouTube …

February 24, 2026

DarkSky publications

Resources

Publications produced by DarkSky International.

July 26, 2023

Materials for public outreach

Resources

Download and distribute these free brochures, cards, infographics, videos, and more.

July 24, 2026

Two people stand beside a camera tripod under a starry sky in Iceland as the faint green glow of the aurora borealis appears above distant mountains. A bright vertical beam of artificial light rises into the sky nearby, illustrating the contrast between natural darkness and light pollution.

Measuring light pollution

Get involved

Solving light pollution requires measuring the brightness of the night sky. Learn how — become a community scientist!

July 5, 2026

Streetlights on city street at night create glare making it hard to see.

Street lighting

Light Pollution

Streetlights can cause light trespass — light that falls where it’s not intended, wanted, or needed.

August 19, 2025

View from inside a house looking through a window at a neighboring property illuminated by extremely bright outdoor lighting at dusk. Tall, leafless trees cast long shadows across the foreground lawn, while intense white light from the neighboring home creates significant glare and illuminates the surrounding woods beneath a deep blue evening sky.

My neighbor’s lighting: What can I do?

Resources

Many of us have experienced this situation: a neighbor installs a new outdoor light fixture that shines onto your …

July 5, 2026

CIty at night with light pollution

Dark sky friendly outdoor lighting for policy makers

Resources

In an average year in the U.S. alone, outdoor lighting uses about 380 terawatt-hours of energy, mostly to illuminate …

August 30, 2023

Responsible outdoor lighting

Resources

Too often, outdoor electric lighting installations at night are over lit, are left on when not needed, and are …

August 11, 2023

Sea Turtle Conservation

Sea turtle conservation

Resources

Hatchling sea turtles often head for brightly illuminated roads and human habitats instead of the ocean.

July 23, 2023

Two schoolchildren wearing wide-brimmed hats hold a colorful handmade poster featuring sea turtles and the message "Cut the glow and let turtles go!" during a community event promoting the protection of sea turtles from light pollution. Several people and educational displays are visible in the background.

Materials for educators

Resources

A light pollution curriculum developed the by DarkSky Texas chapter, with videos and activity sheets for two levels: 1) …

July 5, 2026