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Big Picture Science

Don't Lighten Up

Big Picture Science

Big Picture Science

Science, Technology

4.6986 Ratings

🗓️ 25 August 2025

⏱️ 53 minutes

🧾️ Download transcript

Summary

A canopy of stars in the night sky is more than breathtaking. Starlight is also an important tool that astronomers use to study our universe. But the growth of artificial light and light pollution are creating dramatic changes to the nighttime environment. Let your eyes adjust to the dark as we travel to a dark sky reserve to gaze upon an increasingly rare view of the Milky Way and explore what we lose when darkness disappears.   Guests: Kim Arcand – Visualization scientist & emerging tech lead, NASA's Chandra X-ray Observatory and author of “Light: The Visible Spectrum and Beyond". Don Jolley – Teacher of Math and Sciences at the Bolinas School in Marin, California who has been leading dark sky tours for three decades. Christopher Kyba – Interdisciplinary Geographic Information Sciences Research Fellow at Ruhr University Bochum. Descripción en español Featuring music by Dewey Dellay and Jun Miyake Originally aired July 8, 2024 You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Big Picture Science is part of the Airwave Media podcast network. Please contact [email protected] to inquire about advertising on Big Picture Science. Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

You're listening to an Airwave Media podcast.

0:04.2

I'm Matt Kaplan, the host of Safeguarding Sound Science, Evolution Edition.

0:09.6

Evolution is the unifying principle of biology, yet it still breeds controversy a century

0:15.3

and a half after Charles Darwin.

0:17.7

Join us as we meet the passionate researchers and communicators who are expanding our knowledge

0:23.0

and fighting to keep good science in our schools and politics. Subscribe to Safeguarding Sound

0:29.3

Science on Apple, Spotify, Amazon, or wherever you like to listen?

0:49.8

I think the first time I was in a place which didn't have too much light pollution was when my parents took all three of their kids on a car trip to California.

0:56.5

This was a long time ago, I have to say.

0:58.5

But when we got to the west, places like, you know, Arizona or Nevada,

1:04.1

when you were outside of the cities, the sky was very dark.

1:07.4

And you'd get out and you'd look up at the sky and my god you could see the Milky Way

1:11.7

and seeing the Milky Way was something that I hadn't been able to do for most of my life.

1:16.6

It's really impressive. It's worth the trip. Seeing, you know, thousands of stars. You can see

1:22.4

something like 3,000 stars with your naked eye if there's a dark sky. I mean, just being exposed

1:27.4

to all that. I mean, that's an experience that you're never going to get, you know, living in Manhattan.

1:36.3

Well, I knew my chances were bad in Manhattan to see any starlight, so I tried outside of my apartment in Brooklyn instead. There is plenty of light.

1:47.0

I see streetlights, stoplights, store lights, string lights, bar lights, bike lights, car lights, and

1:52.5

cell phone light. One store has this strobing light outside, flashing red, green, and blue.

1:58.9

It's part of the reason we have blackout curtains. But as I look up,

2:03.7

I do have to unfortunately admit that there is not a single star in the sky. When it comes to

2:10.0

true darkness here in the city, we just never really have it. Unlike our assistant producer, Brian Edwards, who is hemmed in by the lights, I am about 30 miles from the lights of any big city.

...

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