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Light pollution is impacting astronomy around the globe

Light pollution is impacting astronomy around the globe | LIGHTING-Innovation-Design | Scoop.it
Light pollution is impacting astronomy observatories around the globe. And light pollution is increasing at a rate of about 10% a year. Space-based telescopes are above light pollution, but they are much more expensive. And there are many new ground-based observatories in the works. Many of the well-known observatories were built before large urban sprawl. But today, cities such as Los Angeles and Phoenix are much larger with light pollution spilling into once-remote areas. By Richard Green, University of Arizona How light pollution is harming astronomy around the globe Outdoor lighting for buildings, roads and advertising can help people see in the dark of night, but many astronomers are growing increasingly concerned that these lights could be blinding us to the rest of the universe. An estimate from 2023 showed that the rate of human-produced light is increasing in the night sky by as much as 10% per year. I’m an astronomer who has chaired a standing commission on astronomical site protection for the International Astronomical Union-sponsored working groups studying ground-based light pollution. My work with these groups has centered around the idea that lights from human activities are now affecting astronomical observatories on what used to be distant mountaintops. Hot science in the cold, dark night While orbiting telescopes like the Hubble Space Telescope or the James Webb Space Telescope give researchers a unique view of the cosmos – particularly because they can see light blocked by the Earth’s atmosphere – ground-based telescopes also continue to drive cutting-edge discovery. Telescopes on the ground capture light with gigantic and precise focusing mirrors. These mirrors can be 20 to 35 feet (6 to 10 meters) wide. Moving all astronomical observations to space to escape light pollution would not be possible. Space missions have a much greater cost, and so many large ground-based telescopes are already in operation or under construction. Around the world, there are 17 ground-based telescopes with primary mirrors as big or bigger than Webb’s 20-foot (6-meter) mirror. And there are three more under construction with mirrors planned to span 80 to 130 feet (24 to 40 meters). Light pollution and the Vera Rubin Observatory The newest telescope starting its scientific mission right now, the Vera Rubin Observatory in Chile, has a mirror with a 28-foot diameter and a 3-gigapixel camera. One of its missions is to map the distribution of dark matter in the universe. To do that, it will collect a sample of 2.6 billion galaxies. The typical galaxy in that sample is 100 times fainter than the natural glow in the nighttime air in Earth’s atmosphere. So this Rubin Observatory program depends on near-total natural darkness. Any light scattered at night – road lighting, building illumination, billboards – would add glare and noise to the scene. This would greatly reduce the number of galaxies Rubin can reliably measure in the same time, or greatly increase the total exposure time required to get the same result. The LED revolution Astronomers care specifically about artificial light in the blue-green range of the electromagnetic spectrum. That’s because it used to be the darkest part of the night sky. A decade ago, the most common outdoor lighting was from sodium vapor discharge lamps. They produced an orange-pink glow, which meant they put out very little blue and green light. Even observatories relatively close to growing urban areas had skies that were naturally dark in the blue and green part of the spectrum. And that enabled all kinds of new observations. Then came the solid-state LED lighting revolution. Those lights put out a broad rainbow of color with very high efficiency. As in, they produce lots of light per watt of electricity. The earliest versions of LEDs put out a large fraction of their energy in the blue and green. But advancing technology now gets the same efficiency with “warmer” lights that have much less blue and green. Nevertheless, the formerly pristine darkness of the night sky now has much more light, particularly in the blue and green. This comes from LEDs in cities and towns, lighting roads, public spaces and advertising. The broad output of color from LEDs affects the whole spectrum, from ultraviolet through deep red. The U.S. Department of Energy commissioned a study in 2019 that predicted the higher energy efficiency of LEDs would mean the amount of power used for lights at night would go down. It also said the amount of light emitted would stay roughly the same. But satellites looking down at the Earth reveal that just isn’t the case. The amount of light is going steadily up. So cities and businesses were willing to keep their electricity bills about the same as energy efficiency improved, and just get more light. Natural darkness in retreat As human activity spreads out over time, many of the remote areas that host observatories are becoming less remote. Light domes from large urban areas slightly brighten the dark sky at mountaintop observatories up to 200 miles (320 kilometers) away. When these urban areas are adjacent to an observatory, the addition to the skyglow is much stronger, making detection of the faintest galaxies and stars that much harder. When the Mt. Wilson Observatory was constructed in the Angeles National Forest near Pasadena, California, in the early 1900s, it was a very dark site, considerably far from the 500,000 people living in Greater Los Angeles. Today, 18.6 million people live in the LA area, and urban sprawl has brought civilization much closer to Mt. Wilson. When Kitt Peak National Observatory was first under construction in the late 1950s, it was far from metro Tucson, Arizona, with its population of 230,000. Today, that area houses 1 million people, and Kitt Peak faces much more light pollution. Even telescopes in darker, more secluded regions – like northern Chile or western Texas – experience light pollution from industrial activities like open-pit mining or oil and gas facilities. The case of the European Southern Observatory An interesting modern challenge is facing the European Southern Observatory, which operates four of the world’s largest optical telescopes. Their site in northern Chile is very remote, and it is nominally covered by strict national regulations protecting the dark sky. AES Chile, an energy provider with strong U.S. investor backing, announced a plan in December 2024 for the development of a large industrial plant and transport hub close to the observatory. The plant would produce liquid hydrogen and ammonia for green energy. Even though formally compliant with the national lighting norm, the fully built operation could scatter enough artificial light into the night sky to turn the current observatory’s pristine darkness into a state similar to some of the legacy observatories now near large urban areas. This light pollution could mean the facility won’t have the same ability to detect and measure the faintest galaxies and stars. Light pollution and humans Light pollution doesn’t only affect observatories. Today, around 80% of the world’s population cannot see the Milky Way at night. Some Asian cities are so bright that the eyes of people walking outdoors cannot become visually dark-adapted. In 2009, the International Astronomical Union declared that there is a universal right to starlight. The dark night sky belongs to all people … its awe-inspiring beauty is something that you don’t have to be an astronomer to appreciate. Richard Green, Astronomer Emeritus, Steward Observatory, University of Arizona This article is republished from The Conversation under a Creative Commons license. Read the original article. Bottom line: Light pollution is affecting astronomical observatories around the world. Some of these observatories were built before large urban sprawl. And putting all telescopes into space would be extraordinarily expensive. BlueskyFacebookThreadsBufferShare
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December 21, 2013 11:31 AM
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LIGHTING-INNOVATION-DESIGN

LIGHTING-INNOVATION-DESIGN | LIGHTING-Innovation-Design | Scoop.it

public lighting, street lighting...

in XXIst century

became an inseparable  part of our city life 

 

Follow what internet is bringing to you, everywhere in our global world with focus on Africa, China, India

 

Discover related topics

Lighting in art

http://www.scoop.it/t/lighting-in-art

Lighting in history

http://www.scoop.it/t/lighting-in-history

LIGHTING 's insight:

 

Action LeReV/LiSaC

has been regularly presented on the occasion of International Day of Light

https://www.lightday.org/events

and will be again in 2023, with an actualized presentation, available online and on request, live through ZOOM, VooV... and why not in person!

 

August 2015: The resources were rewarded by the label LUMIERE 2015   http://www.lumiere2015.fr/

Le projet Lumière et Société avait distingué en tant que ressources web remarquable Lumières en Rues et en Villes on http://www.lumiere-societe.fr/pages/ressources/sites-web/

Malheureusement ces sites ont disparu

LeReV was looking forward to become online Official Media Partner of PLDC. https://pld-c.com. However, organizers did not understand that curation of information is another kind of media! https://www.scoop.it/search?q=PLDC&type=post&page=1&limit=24

 

GOLD since December 24, 2015 Thanks SILVER; GOLD again, and again...

 

Originalités de ce Content Hub:

- un suivi de l'actualité 

- un abord scientifique et technique  

- un suivi sociétal des attitudes du public vis à vis de la lumière dans les villes et dans la nature

- une vision globale du sujet, avec des focus sur l'Asie et l'Afrique

- un archivage permettant de suivre l'évolution

 

in english:

follow-up of news on the topic

initially a technical scientific watch

a societal view by scientists and laypeople of lighting in cities and far away from them

a global survey with focus on Asia and Africa

an archive allowing to follow evolution of knowledge and concepts

 

 

 

 

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March 1, 12:58 PM
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#henrikapihlajaniemi | Nighttime Design (NTD), an international initiative

#henrikapihlajaniemi | Nighttime Design (NTD), an international initiative | LIGHTING-Innovation-Design | Scoop.it
LUCI Association Summt 2026 featured presentations and walks for the Art of Darkness, a research and pilot study about dark and light in cultural heritage. Here, an installation by an engineer honoring previous industrial archtecture.

#HenrikaPihlajaniemi, Art of Darkness Project Coordinator & Associate Professor – University of Oulu
Jasmine van der Pol, Senior Programme Manager – LUCI Association
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Annual Report 2025 | LightingEurope

Annual Report 2025 | LightingEurope | LIGHTING-Innovation-Design | Scoop.it
📢 The LightingEurope Annual Report 2025 is now online!

In 2025 we achieved a lot together: from the European Lighting Summit in Brussels, to 23 Brussels Direct webinars, and the completion of the 2025 Mystery Shopper project supporting our advocacy work.

Take a moment to explore the achievements and see what’s ahead for 2026.

👉Find it here: https://lnkd.in/ee59Ja8G

Thank you very much to Antonella Del Figliolo for your support!
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March 1, 12:57 PM
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‘The normal should be darkness’: why one Belgian national park is turning off ‘pointless’ streetlights | Leni Schwendinger

‘The normal should be darkness’: why one Belgian national park is turning off ‘pointless’ streetlights | Leni Schwendinger | LIGHTING-Innovation-Design | Scoop.it
The debate continues…
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March 1, 12:57 PM
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#expériences #complément #techniques #technologiques #sdal #formation #ateliers #démocratique #politiques #fines #qualité | Nicolas Houel

#expériences #complément #techniques #technologiques #sdal #formation #ateliers #démocratique #politiques #fines #qualité | Nicolas Houel | LIGHTING-Innovation-Design | Scoop.it
Voici un débat essentiel, mais il lui manque encore trop souvent une chose : la parole de celles et ceux qui vivent la nuit.

À L'Observatoire de la nuit, nous recueillons depuis plusieurs années des témoignages d’habitantes et d'habitants sur leurs #expériences nocturnes.

Il s'agit de récits situés, sensibles, souvent contradictoires, qui donnent à voir la nuit à hauteur d’usages, en #complément des réponses #techniques et #technologiques.

On y lit par exemple :
« Je n’ose plus sortir quand la rue est éteinte »
« La pénombre me rassure, la lumière trop forte m’agresse »
« Ce n’est pas la lumière qui manque, ce sont des horaires adaptés »

Ces témoignages, glanés au fur et à mesure de nos missions de terrain (#SDAL, #formation, #ateliers participatifs) disent quelque chose de fondamental : notre relation à la nuit et à l’éclairage dépasse largement la seule question de la sécurité.

Elle touche à des expériences personnelles, intimes, rarement verbalisées, et encore trop peu intégrées aux politiques publiques.

En résulte alors trop souvent un status quo généralisé au sein des politiques publiques nocturnes, qui hésitent entre l'allumage ou l'extinction, et territorialisent parfois l'éclairage au prisme des gains énergétiques et environnementaux, oubliant qu'il n'a qu'une seule destination, l'être humain et ses usages.

À l’approche des municipales, répondre à cette pluralité par des promesses génériques de « rallumage » ou par le seul argument technologique serait une erreur, car le véritable enjeu est #démocratique :

Recueillir, écouter ces témoignages, les qualifier, puis les traduire en #politiques nocturnes #fines, situées, concertées, capables d’articuler usages, ambiances, biodiversité et #qualité de vie.

À tous ceux qui ont une nuit à exprimer, c'est par ici : https://lnkd.in/eeNZ92jK
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March 1, 12:56 PM
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#lucinetwork #urbanlighting #lucisummitoulu | LUCI Association

#lucinetwork #urbanlighting #lucisummitoulu | LUCI Association | LIGHTING-Innovation-Design | Scoop.it
⏳ Less than one month to go until the 𝗟𝗨𝗖𝗜 𝗖𝗶𝘁𝗶𝗲𝘀 & 𝗟𝗶𝗴𝗵𝘁𝗶𝗻𝗴 𝗦𝘂𝗺𝗺𝗶𝘁 𝗢𝘂𝗹𝘂 𝟮𝟬𝟮𝟲!

Get ready for the annual international gathering of the #LUCInetwork and the global #UrbanLighting community:

📋 Explore the fully updated, detailed programme > https://lnkd.in/eXPupzVZ

🎤 Discover what’s new, including the Open Conference Sessions > https://lnkd.in/gAS9F5V4

👥 Meet the speakers — city representatives, researchers, designers, and urban lighting & planning experts > https://lnkd.in/eT6-KRVC

❄️ Dive into the Optional Programme and experience the full Nordic atmosphere > https://lnkd.in/gpK9GUh7

🛄 Heading to Oulu? Check the Practical Information to plan your stay > https://lnkd.in/e8dZwwRk

See you in Oulu!

📅 25–27 February 2026

#LUCIsummitOulu
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March 1, 12:56 PM
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#design #luminaire #eclairagepublic #collter | Light ZOOM Lumière - Portal of Light and Lighting, a brand of LZL Services

#design #luminaire #eclairagepublic #collter | Light ZOOM Lumière - Portal of Light and Lighting, a brand of LZL Services | LIGHTING-Innovation-Design | Scoop.it
Julien Schnell a conçu la lanterne Facet pour Eclatec. Une création innovante et élégante, au design intemporel. Elle repense les espaces urbains : https://lnkd.in/eGp74fdz

📷 Facet, lanterne ovale pour les espaces urbains
Designer Julien SCHNELL
Fabricant © Eclatec France

#design #luminaire #eclairagepublic #collter
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March 1, 12:55 PM
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Une ville de l’Oise rallume ses lampadaires la nuit : les habitants apprécient

Une ville de l’Oise rallume ses lampadaires la nuit : les habitants apprécient | LIGHTING-Innovation-Design | Scoop.it
Depuis le 1er janvier, la ville de Creil a décidé de réactiver l’éclairage public toute la nuit. Une décision qui fait réagir dans cette ville très courtisée électoralement.
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March 1, 12:55 PM
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#darkandquietskies #spacedebris #unoosa #astronomy #spacesustainability | Stefan Wallner

#darkandquietskies #spacedebris #unoosa #astronomy #spacesustainability | Stefan Wallner | LIGHTING-Innovation-Design | Scoop.it
Today I presented my research at the United Nations Office for Outer Space Affairs (UNOOSA).

At the UN/SKAO Dark and Quiet Skies Workshop in Vienna, I spoke about a new form of light pollution that’s literally coming from space: the diffuse skyglow created by millions of tiny debris particles in low Earth orbit.

Unlike the satellite streaks that have sparked recent attention, this effect is subtle – small fragments scattering sunlight, collectively brightening the night sky in ways that cannot be shielded against from the ground. Our models predict this contribution will increase significantly in the coming decade.

What makes this particularly challenging for policy: the models we use to predict debris populations still carry substantial uncertainties for the smallest particles – exactly the ones driving this effect.

Dark skies need advocates at every level – from local communities to the United Nations. Honored to be part of this important conversation.

Thank you, Yana Yakushina for the pics! 😀

#DarkAndQuietSkies #SpaceDebris #UNOOSA #Astronomy #SpaceSustainability
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March 1, 12:55 PM
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For as long as Earth has revolved around the sun, night has been part of life’s rhythm. Now, a private company is proposing to turn darkness into a commodity—using satellites to reflect sunlight… ...

For as long as Earth has revolved around the sun, night has been part of life’s rhythm. Now, a private company is proposing to turn darkness into a commodity—using satellites to reflect sunlight… ... | LIGHTING-Innovation-Design | Scoop.it
For as long as Earth has revolved around the sun, night has been part of life’s rhythm.

Now, a private company is proposing to turn darkness into a commodity—using satellites to reflect sunlight onto Earth at night.

DarkSky opposes Reflect Orbital’s proposal and is calling on our community to speak up. The night sky belongs to everyone.

Learn more, sign our open letter, and stay informed as this issue moves forward: https://bit.ly/4jqMN0J
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Suggested by Gilbert C FAURE
March 1, 12:54 PM
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What scares me about such ideas - aside of the very real damage this will do - is that private companies as well as governments make wide ranging decisions without considering the effects. They fee...

What scares me about such ideas - aside of the very real damage this will do - is that private companies as well as governments make wide ranging decisions without considering the effects. They fee... | LIGHTING-Innovation-Design | Scoop.it
What scares me about such ideas - aside of the very real damage this will do - is that private companies as well as governments make wide ranging decisions without considering the effects. They feel powerful when they interfer with nature but they don't understand the most basic concepts. And many people celebrate them for these achievement.

We want progress. We want to be free of constraints. But if a small group of technically advanced people change the essential patterns on Earth because they lack understanding or because some entrepeneurs want to make even more money, we all loose something that can't be paid for with all the money in the world.
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Suggested by Gilbert C FAURE
December 24, 2025 10:01 AM
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Luminaire Durable : fabrication locale & économie circulaire | Ghm France

Luminaire Durable : fabrication locale & économie circulaire | Ghm France | LIGHTING-Innovation-Design | Scoop.it
🌱 Luminaire durable : éclairer autrement, collectivement.
La durabilité des luminaires est devenue un enjeu central pour l’éclairage public : conception, réparabilité, cycle de vie, ancrage territorial…

Aux côtés d’autres acteurs de la filière, Ghm France et Eclatec France soutiennent avec passion la démarche portée par le collectif Luminaire Durable, animée par RIVALEN, qui vise à apporter une lecture pédagogique et factuelle des enjeux environnementaux et socio-économiques de notre secteur.
Un livre blanc est d'ailleurs aujourd’hui mis à disposition pour nourrir la réflexion et encourager des pratiques plus responsables, au service des territoires et de leurs usages.

👉 Découvrir le site et le livre blanc : https://lnkd.in/epKpG23m

#LuminaireDurable #EclairagePublic #Durabilité #RSE #IndustrieFrançaise #ÉconomieCirculaire
avec David LELIEVRE , président du groupe AGORA-MAKERS
https://lnkd.in/epKpG23m
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December 24, 2025 10:00 AM
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#otus3 #lightpollutionplatform | Sebastien Vauclair

#otus3 #lightpollutionplatform | Sebastien Vauclair | LIGHTING-Innovation-Design | Scoop.it
Fruit de nombreux mois (et années) de travail nous sommes particulièrement heureux et fiers de vous présenter notre nouveau logiciel de production de cartes de pollution lumineuse (#OTUS3) qui, en plus de la brillance du ciel, modélise désormais l'éclairement perçu au sol. Données plus pertinentes pour les projets d'aménagement territoriaux et de protection de la biodiversité. Mais on ne s'arrête pas là alors à très bientôt pour la suite... Et dès le premier trimestre 2026 retrouvez ces cartes (à l'échelle mondiale) sur la #lightpollutionplatform de DarkSkyLab
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March 1, 12:58 PM
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🇨🇳 𝐓𝐑𝐀𝐕𝐄𝐋 in 𝐂𝐇𝐈𝐍𝐀 ❤️

🇨🇳 𝐓𝐑𝐀𝐕𝐄𝐋 in 𝐂𝐇𝐈𝐍𝐀 ❤️ | LIGHTING-Innovation-Design | Scoop.it
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March 1, 12:58 PM
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Programme LUCI OULU

Check out the programme for the Cities & Lighting Summit 2026, taking place on the 25-27 February, in Oulu.
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March 1, 12:57 PM
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2025-12-10-ART-TECHNICITE-EP-ARBITRAGES-COMPLEXE.pdf | Prismes éditions

2025-12-10-ART-TECHNICITE-EP-ARBITRAGES-COMPLEXE.pdf | Prismes éditions | LIGHTING-Innovation-Design | Scoop.it
🌞 L’éclairage public, au cœur d’arbitrages complexes

Dans cet article de LUX La revue francophone de l'éclairage, des équipements connectés et des services associés, Romuald JOBERT (Cerema) présente de nouvelles technologies et nouveaux outils qui ensemble répondent aujourd’hui aux enjeux de l’éclairage public.

👉 À lire ici : https://lnkd.in/ePTgqqHS

𝘛𝘰𝘶𝘳 𝘥’𝘩𝘰𝘳𝘪𝘻𝘰𝘯 𝘥𝘦𝘴 𝘦𝘯𝘫𝘦𝘶𝘹 𝘤𝘰𝘯𝘵𝘦𝘮𝘱𝘰𝘳𝘢𝘪𝘯𝘴 𝘥𝘦 𝘭’é𝘤𝘭𝘢𝘪𝘳𝘢𝘨𝘦 𝘶𝘳𝘣𝘢𝘪𝘯
#éclairagepublic #revueLux #Cerema #PrismesÉditions
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Qu'est ce que les chouettes voient la nuit ?? Voilà la vidéo en timelapse issue des images partagées dans mon post précédent. Elle est constituée de 200 photos, entre 22h20 et 23h00 environ, prise...

Qu'est ce que les chouettes voient la nuit ?? Voilà la vidéo en timelapse issue des images partagées dans mon post précédent. Elle est constituée de 200 photos, entre 22h20 et 23h00 environ, prise... | LIGHTING-Innovation-Design | Scoop.it
Qu'est ce que les chouettes voient la nuit ??

Voilà la vidéo en timelapse issue des images partagées dans mon post précédent. Elle est constituée de 200 photos, entre 22h20 et 23h00 environ, prises ce lundi 19 janvier.
Précision importante : j'ai retravaillé les images pour améliorer la visibilité du phénomène et réduire l'impact des lumières de la ville : j'ai fortement réduit l'intensité des sources lumineuses, et j'ai augmenté l'exposition, le contraste et la saturation des couleurs dans le ciel. Le résultat vidéo est donc très (très) différent ce qu'on pouvait voir dans le ciel ce soir là ! (au delà du fait que c'est accéléré, on s'en rend bien compte avec les phares des voitures..)

Mais je me plais à penser que parmi les nombreuses espèces nocturnes, certaines ont peut être une sensibilité visuelle telle qu'elle perçoivent ces couleurs, ces niveaux lumineux et ces nuances dans le ciel ; tout comme elles perçoivent peut être les couleurs des nébuleuses lointaines, qu'on ne voit apparaître que dans une photographie en pose longue... dans ce cas, du fait de cette hypersensibilité, liée à leur adaptation à une nuit sans éclairage artificiel, les lumières de la ville seront d'autant plus éblouissantes et impactantes pour elles. Il est donc important de garder ça en tête quand on s'intéresse à l'impact de l'éclairage artificiel sur les autres être vivants : l'immense majorité des grandeurs utilisées en éclairagisme se basent sur la sensibilité d'un oeil humain "moyen". Elles ne rendent donc pas du tout compte du rendu pour un oeil animal nocturne !

(Et non, je ne sais pas ce que voient les chouettes, il faudra que je regarde s'il y a des études sur le sujet ! Mais j'ai pu entendre une Hulotte pendant cette prise de vue, elle m'a semblé apprécier le spectacle également... 😉 )
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March 1, 12:57 PM
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Interview. La délinquance augmente-t-elle quand on éteint l’éclairage public ? Les réponses d’une étude inédite en France | Enquêtes d'actu

Interview. La délinquance augmente-t-elle quand on éteint l’éclairage public ? Les réponses d’une étude inédite en France | Enquêtes d'actu | LIGHTING-Innovation-Design | Scoop.it
🔵 #ENTRETIEN

Faut-il rallumer l’éclairage public en milieu de nuit ? À l’approche des élections municipales 2026, cette question fait débat dans bon nombre de communes. 🌃

Après avoir éteint les lampadaires pour des raisons écologiques ou budgétaires, certains maires font aujourd’hui marche arrière, en réponse à la montée d’un sentiment d’insécurité chez leurs administrés. 👮

Faute d’étude sur le sujet en France, ces politiques d’éclairage semblent conduites au doigt mouillé et sous la pression d’un contexte électoral où la question sécuritaire revêt une sensibilité exacerbée. 😬

Publiée en janvier, une thèse apporte une contribution inédite, susceptible d’éclairer citoyens et décideurs. 💡

Post-doctorante en économie de l’environnement à l’INRAE, Chloé Beaudet évalue pour la première fois à l’échelle nationale l’impact de l’extinction de l’éclairage public sur la criminalité. 👩‍🎓

Elle livre ses conclusions à Enquêtes d’actu. 🗣️

#insecurite #criminalite #energie #ecologie #municipales2026
➡️ https://lnkd.in/eXmM9ATT

AgroParisTech Université Paris-Saclay Paris Saclay Applied Economics Cerema Association des maires de France et des présidents d'intercommunalité
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March 1, 12:56 PM
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Éclairage public : des solutions innovantes pour une gestion affinée | Eclatec

Éclairage public : des solutions innovantes pour une gestion affinée | Eclatec | LIGHTING-Innovation-Design | Scoop.it
Strasbourg expérimente l’éclairage public à la demande.
Nous sommes très fiers de voir la Ville et Eurométropole de Strasbourg présenter, sur strasbourg.eu, l'expérimentation concrète d’éclairage public à la demande, déployée sur plusieurs quartiers du territoire.

Cette démarche s’inscrit dans une étape opérationnelle du marché d’éclairage public attribué à Eclatec et illustre tout le potentiel de la télégestion appliquée à l’éclairage urbain :
👉 ajuster les niveaux lumineux selon les usages et les moments de la nuit,
👉 réduire durablement les consommations d’énergie,
👉 maintenir un haut niveau de service et de confort pour les habitants.

Dans ce cadre, Nexiode accompagne la collectivité avec ses solutions de smart lighting, permettant un pilotage fin, évolutif et sécurisé des installations d’éclairage public.
Comme le souligne Michel REISS, directeur commercial en charge des solutions smart lighting Nexiode et Eclatec, « la télégestion permet aujourd’hui d’éclairer au plus juste, en conciliant sobriété énergétique, qualité de service et adaptation aux usages réels du territoire ».

🗞️ Cette initiative a également été relayée par les médias Dernières Nouvelles d'Alsace - DNA et France Bleu, témoignant de l’intérêt croissant pour ces nouvelles approches de l’éclairage public.

🔗 Publication Ville de Strasbourg : https://www.strasbourg.eu
🔗 Article DNA : https://lnkd.in/e_Bk4pUi
🔗 France Bleu : https://lnkd.in/ePVq3iw8

👉 Pour en savoir plus sur le smart lighting, ses bénéfices pour les collectivités et leurs usagers :
https://lnkd.in/eb8viJXv

#Nexiode #Eclatec #SmartLighting #Télégestion #ÉclairagePublic #SobriétéÉnergétique #Strasbourg

https://lnkd.in/dpK5M6qW
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Suggested by Gilbert C FAURE
March 1, 12:56 PM
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AMA Report Affirms Human Health Impacts from LEDs | eileen Kragie

AMA Report Affirms Human Health Impacts from LEDs | eileen Kragie | LIGHTING-Innovation-Design | Scoop.it
A groundbreaking report recently released by the American Medical Association (AMA) Council on Science and Public Health affirms known and suspected impacts to human health and the environment caused by light emitting diodes (LEDs) that emit excessive amounts of blue light.

The AMA report, titled “Human and Environmental Effects of Light Emitting Diode Community Lighting,” unanimously approved by representatives of the Association’s entire membership, supports concerns raised by the International Dark-Sky Association for more than five years. The report presents significant implications for the ongoing, worldwide transition to LEDs as the outdoor lighting technology of choice.

“The AMA’s study not only provides additional rigorous scientific evidence to buttress IDA’s longstanding efforts to raise awareness of the potential hazards of blue-rich light, but also speaks to the bold leadership that the medical community has consistently demonstrated on this critical human health and environmental issue,” IDA Executive Director J. Scott Feierabend noted. (click link for the rest of the article)

https://lnkd.in/eJ44-RrK
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Suggested by Gilbert C FAURE
March 1, 12:55 PM
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https://www.arc-magazine.com/urban-glow-night-walks-in-barcelona/

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Suggested by Gilbert C FAURE
March 1, 12:55 PM
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Did you know darkness is part of a healthy habitat for migratory animals? 🌃 🦇 The CMS International Light Pollution Guidelines for Migratory Species highlight how artificial light can disrupt… |...

Did you know darkness is part of a healthy habitat for migratory animals? 🌃 🦇 The CMS International Light Pollution Guidelines for Migratory Species highlight how artificial light can disrupt… |... | LIGHTING-Innovation-Design | Scoop.it
Did you know darkness is part of a healthy habitat for migratory animals? 🌃 🦇

The CMS International Light Pollution Guidelines for Migratory Species highlight how artificial light can disrupt critical behaviour and may compromise the long-distance migrations that are integral to an animal's life cycle.

Keeping outdoor lights low, shielded, and pointed downwards helps keep light on the ground where it is needed, not spilling into surrounding habitats or the night sky. Thoughtful choices around nighttime lighting can make a big difference for wildlife on the move. 💡 🐦

Download the guidelines for more insights: https://lnkd.in/eUXcPgjB
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Suggested by Gilbert C FAURE
March 1, 12:54 PM
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DarkSkySites | Daily Light Pollution Map, Skyglow Light Simulator, Astrophotography Calculator.

The most recent and accurate light pollution map online. Compare locations for imaging, simulate light pollution skyglows, and calculate imaging and integration speeds.
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Suggested by Gilbert C FAURE
March 1, 12:53 PM
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Can we switch back to sodium lights? . Do you remember the warm, golden glow of old sodium streetlights that once lit up our neighborhoods at night? That soft amber light was a familiar sight acros...

Can we switch back to sodium lights? . Do you remember the warm, golden glow of old sodium streetlights that once lit up our neighborhoods at night? That soft amber light was a familiar sight acros... | LIGHTING-Innovation-Design | Scoop.it
Can we switch back to sodium lights?
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Do you remember the warm, golden glow of old sodium streetlights that once lit up our neighborhoods at night? That soft amber light was a familiar sight across the UK and the US, creating a peaceful, comforting atmosphere that made streets feel safe and welcoming. These sodium lamps produced a gentle glow with minimal glare, helping people relax as they walked home and giving neighborhoods a strong sense of community and nostalgia.

Today, most cities have replaced those lights with bright white LED streetlights, praised for their energy efficiency, lower costs, and longer lifespan. While LEDs are better for sustainability and city budgets, they have also changed the nighttime experience. Many people feel the new lighting is harsher, more clinical, and less inviting, sometimes increasing glare and light pollution.

Because of this, some cities are now experimenting with warmer-colored LEDs, smart dimming systems, and adaptive lighting to balance efficiency with comfort. These efforts aim to recreate the cozy nighttime feel of the past while keeping modern benefits. Still, for many residents, the golden glow of sodium streetlights represents more than old technology—it symbolizes comfort, safety, memories, and the heart of neighborhood life. | 81 comments on LinkedIn
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Suggested by Gilbert C FAURE
December 24, 2025 10:00 AM
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#ghm #ghm #bonneannée2026 #designurbain #éclairagepublic #innovation #savoirfaire | Ghm France

#ghm #ghm #bonneannée2026 #designurbain #éclairagepublic #innovation #savoirfaire | Ghm France | LIGHTING-Innovation-Design | Scoop.it
✨ 2026, une année lumineuse avec #Ghm ! ✨
Alors que nous tournons la page de 2025, Ghm France vous invite à découvrir avec poésie l’ensemble Métropole, symbole de notre passion pour le design, la qualité et l’innovation au service de l’espace public.

Pour #2026, nous souhaitons continuer à illuminer vos villes et vos projets, en conjuguant savoir-faire, élégance et modernité, et en mettant notre engagement durable au cœur de chacune de nos réalisations.

Merci à nos équipes, partenaires et clients pour leur confiance. Que cette nouvelle année soit riche en lumière, en inspiration et en réussite partagée !
#GHM #BonneAnnée2026 #DesignUrbain #ÉclairagePublic #Innovation #SavoirFaire

L'usine ouvre à nouveau ses portes lundi 5 janvier.
www.ghm.fr
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December 24, 2025 10:00 AM
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Today, I finally signed the contract as Principal Investigator of the @CICS.Nova Research Chair in Tourism, Leisure and Urban Dynamics at NOVA FCSH. After nine years as a postdoctoral fellow and si...

Today, I finally signed the contract as Principal Investigator of the @CICS.Nova Research Chair in Tourism, Leisure and Urban Dynamics at NOVA FCSH. After nine years as a postdoctoral fellow and si... | LIGHTING-Innovation-Design | Scoop.it
Today, I finally signed the contract as Principal Investigator of the @CICS.Nova Research Chair in Tourism, Leisure and Urban Dynamics at NOVA FCSH. After nine years as a postdoctoral fellow and six years as Principal Investigator of the Scientific Employment Stimulus Programme in Portugal, this is the first time, at the age of 47, that I have signed a (supposedly) permanent contract. This is not luck (as many people tend to say): it is the result of many years of working much more than eight hours a day, including weekends and holidays, and trying by all means to secure scientific employment for the younger colleagues of my LXNights Research Group through research project proposals, etc. As this position as FCT-Tenure Principal Investigator is publicly funded, the Portuguese people deserve to know at least the essential points of my short-, medium- and long-term objectives:

1. To Keep on developing theoretical and empirical knowledge on nighttime tourism destinations, especially in relation to global change;
2. To strengthen my leadership at world level in the interdisciplinary field of ‘night studies’.
3. To continue to develop the 5 new research lines in the interdisciplinary intersection between tourism studies, leisure studies and regional & urban studies I’ve opened up over the last five years, namely: 
3.1.. The spatial, social and heritage impacts derived from the touristification of nightlife (see first article in Urban Geography, 2021);
3.2. The biosecuritization of the Tourist city and its nightlife (see first article in ACME: An International Journal for Critical Geographies, 2023);
3.3. The future ‘greening’ of the nightlife industry (see first article in World Leisure Journal, 2023); 
3.4. Nightlife as source of socioemotional wellbeing and common good (see first article in Annals of Leisure Research, 2023); 
3.5. The design of the nocturnal 15-minute city, including nocturnal 15-min tourism destinations (see first article in Urban Geography, 2024);
4. To reinforce the attraction of research funding by designing, drafting and submitting as PI 1 research project every two years (national agencies: Portuguese Foundation for Science & Technology; international agencies: ERC AdG, Horizon, NEB, COST Action);
5. To Maintain a significant number of Q1 scientific publications per year, equally respecting Open Access Science mandates;
6. Mantain NOVA FCSH as Host Institution of my LXNIGHTS Research Group, as Co-Host Institution of the International Night Studies Network.

To all nightologists, you know you can count on me, my research centre (CICS.NOVA - Interdisciplinary Center of Social Sciences) and my faculty (NOVA FCSH) for research stays, collaborating on academic initiatives and even participating in the absolute madness of designing a research project proposal 🤩

The night will always be ours 🙂 | 17 comments on LinkedIn
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