PBS: The Movement to Save Our Night Skies

From PBS Terra

For most of human history, darkness meant danger. Humans sought out light to stay safe and extend our active hours. Centuries later, we’ve succeeded so well in our illumination efforts, we have literally dimmed the stars. Join host Baratunde Thurston in exploring one small town’s mission to become a Dark Sky Community and reclaim the darkness of night. Follow researchers in Western Colorado to discover how the darkness of night is not just important to experience the wonders of the cosmos, it’s vital to maintaining healthy ecosystems—and saving the epic migrations of America’s birds.