In defense of darkness

Megan Eaves-Egenes grew up under the very starry skies of rural New Mexico. During those years, she developed a deep appreciation for astronomy. The fascination is, of course, not hers alone. But, a starry sky requires one pretty important ingredient: darkness. One study recently reported that since 2011, the night sky has gotten brighter at about 10% per year. All that light pollution has brought dire consequences to life on planet earth. Crickets can’t tell whether it’s day or night, bird migrations have gone haywire, and our own natural alarm clocks are constantly confused. In a world where switching on a lamp during evening hours is, as Megan writes, “almost as basic as breathing” is there hope for our night skies? Or have we illuminated our way to a point of no return? Featuring Megan Eaves-Egenes. SUPPORT To share your questions and feedback with Outside/In, call the show’s hotline and leave us a voicemail. The number is 1-844-GO-OTTER. No question is too serious or too silly. Outside/In is made possible with listener support. Click here to become a sustaining member of Outside/In. Follow Outside/In on Instagram and BlueSky, or join our private discussion group on Facebook. LINKS You can order a copy of Megan’s book Nightfaring: In Search of the Disappearing Darkness on her website. Want to plan travel around dark sky locations? Dark Sky International offers a variety of guides and tips on how to visit darky sky locations responsibly. There are many popular stargazing apps. Megan uses SkyView, but also recommends Stellarium or SkySafari. Learn more about satellite’s role in light pollution from our 2024 episode, “The new space race.” Made nearly 10 years ago, here is our episode about light pollution emitted from a New Hampshire greenhouse. CREDITS Produced by Marina Henke. For full credits and transcript, visit outsideinradio.org Learn more about your ad choices. Visit megaphone.fm/adchoices