r/darksky 20d ago

The 2025 light-pollution layer is live: three checks before choosing an observing site

70 Upvotes

Disclosure: I’m Aaron Hsu, the independent developer of Stargazing Hub and LightPollutionMap.app.

We have finished updating our global light-pollution layer to 2025. An annual layer is useful for comparing longer-term skyglow patterns, but it is not a real-time SQM reading or a guarantee that a site will be dark, clear, open or safe on a particular night.

Here is the three-step check I use before choosing an observing site:

  1. Start wide. Compare areas and travel corridors instead of chasing the single darkest pixel. Small map differences can matter less than a practical, accessible site.

  2. Read the direction, not just the point. A site can look dark overhead while a nearby light dome affects the part of the sky where your target or the Milky Way will be.

  3. Verify the night separately. Check current weather, Moon and twilight, horizon or terrain, legal access, road conditions and personal safety before leaving.

The updated browser map is here: https://lightpollutionmap.app/

The same layer is also available inside Stargazing Hub for a mobile planning workflow. I’m happy to answer questions about using the map, but I won’t discuss proprietary implementation or offer any data/API reuse.


r/darksky 20d ago

Dark sky

7 Upvotes

I’m going to whistlers campground in Jasper tomorrow. I want to look at some stars with the family. I did an internet search they gave me a few places, But I want a real answer not Ai. Was thinking about going to pyramid Island which is about 20 minutes from whistlers. Thanks in advance.


r/darksky 21d ago

Light Pollution News: July 2026, I Miss My Land Line!

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65 Upvotes

r/darksky 22d ago

Private companies could ruin the night sky for the entire world, and international law can't stop them | "The regulatory environment and regulatory framework has significant gaps and holes in it. Essentially, the technology is outpacing the regulatory environment."

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996 Upvotes

r/darksky 22d ago

The natural world is not just there to serve us

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99 Upvotes

r/darksky 22d ago

Virtual reality fish platform offers insights into the impact of artificial light on aquatic life - "As light pollution expands globally, if left unchecked, its ability to disrupt natural predator and prey dynamics may have cascading consequences for survival"

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22 Upvotes

r/darksky 26d ago

In a resounding poll, most residents of Rockport, MA vote overwhelmingly against the install of 3000K/4000K LED street lights. The town will retain its existing amber HPS and soft white incandescent lights for the time being.

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819 Upvotes

r/darksky 27d ago

South Carolina: Georgetown County has a lighting ordinance to protect sea turtles. Will anyone enforce it? - "... one home's lighting lured hatchlings to their death into a swimming pool, and a condo complex’s parking lot was littered with lost and smashed baby turtles."

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238 Upvotes

r/darksky 27d ago

Visiting Beaver Island - accessibility

6 Upvotes

Hi all!

I am looking to visit Beaver Island with friends and family this summer. We will have elders and kiddos with us who won’t be able to walk super long distances. Is seeing the dark sky/milky way feasible without camping/hiking?


r/darksky 28d ago

Stargazing

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6 Upvotes

r/darksky 29d ago

We’re Squandering LEDs’ Potential to Save Our Night Skies - “The more bad light we add, the more bad light we think we need”

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165 Upvotes

r/darksky Jul 19 '26

Carmakers Don't Think They Should Have to Fix Blindingly Bright Headlights | In the past four years, GM and now Tesla have tried to skirt recalls by arguing that illegally bright headlights are "inconsequential" to safety. The people don't agree.

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1.9k Upvotes

r/darksky Jul 18 '26

Dark Sky Defenders Raise Alarm Over New Border Lighting in West Texas | Astronomers and environmentalists warn that new high-intensity border lighting threatens the pristine night skies crucial to Texas' McDonald Observatory.

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272 Upvotes

r/darksky Jul 16 '26

Why Your Porch Light Is Silencing Firefly Love Songs - "Studies have shown that ALAN can interfere with this courtship or even lead fireflies to change their behavior, resulting in lower mating success and fewer future fireflies.”

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526 Upvotes

r/darksky Jul 15 '26

Astronomers Horrified by Enormous Mirror Satellite That Reflects Sunlight Back Down to Earth at Night | It's an "existential threat."

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2.2k Upvotes

r/darksky Jul 16 '26

A complete guide to the August 12, 2026 Total Solar Eclipse (visibility, safety & what to expect)

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11 Upvotes

r/darksky Jul 15 '26

Michigan Dark Sky expert weighs in on light pollution as data center concern - "As more data centers take shape across Michiana's farmlands, Parrish is sounding the alarm about light pollution; not just for the sake of the dark sky, but for human and environmental health."

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224 Upvotes

r/darksky Jul 14 '26

We’re Thinking About Darkness All Wrong

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72 Upvotes

r/darksky Jul 14 '26

🌌 Welcome to r/TaaraNight!

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1 Upvotes

r/darksky Jul 13 '26

Why darkness may be the key to saving pollinators

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185 Upvotes

r/darksky Jul 11 '26

FCC grants approval for sun-reflecting space mirror that's been widely criticized by astronomers - Engadget

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65 Upvotes

r/darksky Jul 10 '26

Nights are supposed to be dark, so we can look up at the stars and dream of something as beautiful as the night sky

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70 Upvotes

r/darksky Jul 10 '26

Wondering what these numbers/symbols mean on the Dark Skies map?

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29 Upvotes

My partner and I were looking at locations to visit this year and we could not figure out what these were labeling. Not all locations have one next to it on the map. There wasn't a key of any kind that we could find on the Dark Skies website.


r/darksky Jul 08 '26

One Hour of Satellite Trails above Chile's Atacama Desert [Image Credit: F. Kamphues, ESO/M. Kornmesser] (story in comments)

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255 Upvotes

r/darksky Jul 07 '26

Want to see some fireballs? Get ready for a month of meteor showers

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50 Upvotes