Lmst

This is such a great way to both cut #LightPollution and save energy.

Sign that says (in German) "Dear guests, with a click of the button you have the ability to turn the pavilion lights on during the evening hours. We wish you a pleasant stay, Ortsgemeinde Osterspai".

I hope more people will become aware of light pollution and join in reducing it next year.

https://darksky.org/resources/what-is-light-pollution/

#lightpollution #darksky #nightsky #saveournightsky

Diagram showing five types of streetlights at night, ranging from worst (unshielded, wasting light up into the sky) to best (fully shielded with full cut-off, using timers/motion sensors) to prevent light pollution.

When it is dark, humans like to use well-lit streets but bats prefer to use dark areas. Urban planning should accomodate both.

#bats #lightpollution

https://www.izw-berlin.de/en/press-release/urban-bats-avoid-street-lights-when-commuting-between-their-roosts-and-foraging-grounds.html

Some communities go to the mat for their dark skies — and it pays off. Michigan now boasts 10 certified dark-sky places, but even there, industry keeps trying to chip away at the night. From detention-center glare hitting Big Cypress to mining threats in the Boundary Waters, oil and gas in the Arctic, and even industrial glow creeping into Chile’s legendary Atacama Desert.

Gifted NYT article: https://www.nytimes.com/2025/11/24/science/astronomy-michigan-dark-sky.html?unlocked_article_code=1.308._A_D.9D2VL2ofoQVz&smid=url-share

#DarkSkies #LightPollution #Astronomy #Conservation #WAS #WestportObservatory

Documenting dark skies and the light of the Milky Way: The last places on Earth to see truly dark starry nights #astrophotography #darkskies #stars #nightsky #lightpollution #photography #skyview #milkyway #astronomy #estrellas #cielonoche #etoiles #nightskyphotography

The last places on Earth to se...

Documenting dark skies and the light of the Milky Way:

The last places on Earth to see truly dark starry nights

https://www.bbc.com/travel/article/20231123-the-last-places-on-earth-to-see-truly-dark-starry-nights

#astrophotography #darkskies #stars #nightsky #lightpollution #nightshot #noche #nuit #photography #Fotomontag #skyview #milkyway #astronomy #estrellas #cielonoche #etoiles #nightskyphotography

"In February, a local environmental group launched a campaign called The Right to Night to overturn a Michigan law prohibiting the establishment of dark sky preserves on state land in the U.P., which includes 18 state parks."

"'That just struck me as ludicrous,' said Tom Grotewohl, who in 2023 founded Protect the Porkies, the group behind the campaign, to stop a mining project near the region’s Porcupine Mountains State Park. 'Why would you not have dark sky preserves in a place where the skies are darkest?'"

https://www.nytimes.com/2025/11/24/science/astronomy-michigan-dark-sky.html

#DarkSkies #LightPollution #Conservation #Michigan

Support the right to #night!

https://www.nytimes.com/2025/11/24/science/astronomy-michigan-dark-sky.html #lightpollution #wildlife #climate

Acabo de actualizar mi dataset sobre contaminación lumínica nocturna global generado con mi herramienta radiance-geojson (https://codeberg.org/imigueldiaz/radiance-geojson). Contiene archivos JSON (.json.gz) y un dump completo en PostGIS (restaurada ocupa 27GB, con casi 140 millones de puntos georreferenciados), con datos de radiancia, brillo del cielo y clasificación Bortle para 173 países a 0.5 km de resolución. Basado en imágenes VIIRS de Earth Observation Group, Colorado School of Mines.

Puedes descargarlo gratis desde: https://archive.org/details/radiance-geojson-data-2025

Ideal para análisis geoespaciales, ambientales y astronómicos, en mi caso lo usaré para astrofotografía si me da la vida. Licencia CC BY 4.0.

#opendata #geospatial #lightpollution #VIIRS #PostGIS #gis #spatialdata #dataset #CCBY4 #opensource #radiance #astrophoto #astrophotography

Mastodon! :aroaceheart:

Ayer subí mi primer #opendataset a @internetarchive y estoy muy contento: aunque no lo use nadie, he aprendido un montón de cosas 😊

Global nighttime light pollution dataset (country level, VIIRS-based) at https://archive.org/details/radiance-geojson-data-2025

#opendata #lightPollution #JSON

I had hoped to catch a sunset last night, but it was very overcast. However, I had some time to kill so I did a couple of errands and then made a nighttime hike up Buck Hill. I spent some time up at the top just enjoying the night view which I don't often get to see. And then it started to clear up. I could see some stars, but what really struck me was how all of the light pollution was illuminating the clouds. It was both scary and gorgeous.

Usually when I hike in the dark, I need to use a headlamp. But on this night I seemed to be able to navigate around the top of the hill with no problem. Was it because I was up there for a while and my eyes adjusted? There was no moon. When it was time to head down, I decided to see how long I could go without needing the headlamp, figuring that when I dipped below the tree line I would have to turn it on. But much too my surprise, I could see just fine. I was able to navigate the whole trip down using light pollution. Kinda wild, but a bummer!

#BuckHill #BlueHills #BlueHillsReservation #Landscape #LandscapePhotography #Photography #LightPollution #Clouds #NightHiking #NightPhotography

A cloud formation illuminated by light pollution viewed from the top of Buck Hill.

Unreviewed for now, but this looks like a useful paper. #ALAN #LightPollution #DarkSkies

https://www.preprints.org/frontend/manuscript/4e011c28adcad0b415427e0601ac5399/download_pub

Cover page of the paper "Artificial Light at Night (ALAN), a New
Anthropogenic Pollutant" listing its title, authors, DOI, and keywords.

"Hickenlooper, Crapo Reintroduce Bill to Protect Night Sky, Aid Research"

https://www.hickenlooper.senate.gov/press_releases/hickenlooper-crapo-reintroduce-bill-to-protect-night-sky-aid-research/

"Today, U.S. Senators John Hickenlooper and Mike Crapo reintroduced their bipartisan Dark and Quiet Skies Act, which would preserve the night sky from unintentional light and radio interference that disrupts industry and academic space research."

#USPol #Astronomy #Space #DarkSkies #LightPollution

“There’s bipartisan agreement that we need a strong space economy and cutting-edge scientific research to unlock the mysteries of our universe,” said Hickenlooper. “The Dark and Quiet Skies Act helps us do both. This is a no-brainer solution, and we’re pushing to get it done.”

“The vastness of Idaho’s wilderness allows for truly magnificent wonders in the night sky,” said Crapo. “The advancement of space technology has made these majestic spaces fewer, and collaborative approaches to mitigate interference is vitally needed.”

Blood Moon photos: the total #LunarEclipse of September 2025: https://zorz.it/TcoUf

#SoumyadeepMukherjee #astrophotography #TotalLunarEclipse #GrandestSpectacles #sky #TheMoon #photographers #LightPollution #BloodMoon

Johnston et al (2025) Widespread influence of artificial light at night on ecosystem metabolism

https://www.nature.com/articles/s41558-025-02481-0

#science 🧪
#ecology 🪲
#lightpollution 💡
#openaccess 🔓

No more #lightpollution!

Widespread influence of artificial light at night on ecosystem metabolism: https://www.nature.com/articles/s41558-025-02481-0 -> summary: https://scicomm.xyz/@JohnBarentine/115542859343535001 #LightPollution

No more #lightpollution on the high #seas

'Verloren im Dunst' #FotoVorschlag

aka #Lichtverschmutzung #LightPollution
#Wiesloch

Nachtaufnahme einer blauen Lichtkuppel über der Stadt. Im Vordergrund eine Reihe Häuser.

Even if these new #cruise #ships are powered by #electric, they're still a #boondoggle. And by the way, what about #lightpollution? Do #birds and #sea life have any rights in this equation, and did anyone see fit to bring that up earlier?

https://www.cruisehive.com/nyc-unveils-major-overhaul-of-manhattan-cruise-terminal/191898 #wildlife #marinewildlife #sealife

#Lightpollution

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