New study confirms that short wavelength light (UV & blue) attracts the most nocturnal insects & that intensity increases attraction for all colours. Longer wavelength & lower intensity outdoor lights should reduce biodiversity impacts resjournals.onlinelibrary.wiley.com/doi/10.1111/... #teammoth 🌍

Still too little, but pointing in the correct direction: the Restoration of Natural Darkness "The IUCN World Conservation Congress 2025..." "REQUESTS the Director General to promote the development of a global strategy for the restoration of natural darkness..." iucncongress2025.org/assembly/mot...

Your daily article of the UDHR "Art. 4 No one shall be held in slavery or servitude; slavery and the slave trade shall be prohibited in all their forms." www.un.org/en/about-us/...

Your daily article of the UDHR "Art. 3 Everyone has the right to life, liberty and security of person." www.un.org/en/about-us/...

Interested in the new challenges in the field of Space Environmentalism? Follow: bsky.app/profile/spac...

Xa está na rede a conversa que onte mantivemos sobre a proliferación dos negacionismos dentro do ciclo #revisarosmarcos con Marcos Pérez e Martín Pawley na sede da @acalexandreboveda.bsky.social youtu.be/dVC5oNYSMKc

La Nuit : et si on se laissait attirer par le côté obscur ? Chamonix-Mont-Blanc, 5 décembre 2025 à 19h ⬇️ www.chamonix.fr/agenda/bar-d...

"(...) Furthermore, no distinction shall be made on the basis of the political, jurisdictional or international status of the country or territory to which a person belongs, whether it be independent, trust, non-self-governing or under any other limitation of sovereignty." www.un.org/en/about-us/...

Unha interesantísima enquisa sobre a nosa percepción das contaminacións luminosa e acústica, promovida polo proxecto PLAN-B. Dispoñible en galego-portugués. Anímate a participar! app.onlinesurveys.jisc.ac.uk/s/salford/pl...

UDHR Art. 2 "Everyone is entitled to all the rights and freedoms set forth in this Declaration, without distinction of any kind, such as race, colour, sex, language, religion, political or other opinion, national or social origin, property, birth or other status. (...)" www.un.org/en/about-us/...

Jonathan's Space Report No. 851 published at planet4589.org/jsr.html

The importance of place and native names always seems to cause such hateful division in Cymru, which I don’t understand. It’s so sad people cannot grasp what magic it brings to landscapes to embrace their native Cymraeg names. Let’s look at ‘The Spinnies’. A local nature reserve 🏴󠁧󠁢󠁷󠁬󠁳󠁿

In a win for polluters, the Trump regime proposed a rule to limit the EPA’s authority to regulate pollution in wetlands and waterways. This would strip federal protections from 55 million acres of wetlands (85% of all wetlands nationwide!), threatening lots of people's drinking water.

Stop warmongers. Also EU ones.

Your daily article of the UDHR www.un.org/en/about-us/... "Article 1 All human beings are born free and equal in dignity and rights. They are endowed with reason and conscience and should act towards one another in a spirit of brotherhood."

Quérote, Rosi.

Since this meme is trending, let me clarify that it refers to this poem, published in 1880 by Rosalía de Castro (translation by Kathleen March). It tells the story of a woman’s revenge: after pleading for justice in vain, she decides to take matters into her own hands and kill those who wronged her.

Role of Circadian Health in Cardiometabolic Health and Disease Risk: A Scientific Statement From the American Heart Association "Disruptions to circadian rhythmicity can adversely affect cardiometabolic function and health" www.ahajournals.org/doi/epub/10....

ASTROGALICIA 2025: unha cita a non perder! ceosgalegos.com/ag25/

ASTROGALICIA 2025: unha cita a non perder! ceosgalegos.com/ag25/

Bullying lumínico... #LightPollution #Aurora @ceosgalegos.bsky.social cc @salvabara.bsky.social

"According to new research, 'space waste' injects a considerable amount of its matter into the mesosphere and lower thermosphere — enough to potentially weaken the Earth’s ozone layer." spacenews.com/uncontrolled... #SpaceEnvironment #Space #Atmosphere

Light pollution: The silent threat to the planet that's easily solved https://phys.org/news/2025-11-pollution-silent-threat-planet-easily.html

"Our findings show that ALAN disrupts the fundamental energetic constraints on ecosystem metabolism, warranting the inclusion of light pollution in global change and carbon–climate feedback assessments." Johnston, Kim, & Harris. Nat. Clim. Chang. (2025). doi.org/10.1038/s415...

Worth reading (open access): "Technical Comparison of Very Low CCT White PC LEDs, PC-Amber LEDs, and White PC LEDs with Blue Filters Secondary Lenses Luminaires to Meet Regulatory Standards on Light Pollution" by Guillermo M. Redrado-Salvatierra et al. doi.org/10.1080/1550...

"The domination of scientific publishing...by major commercial publishers is harmful to science. We need the most powerful members of the research community, funders, governments & Universities, to lead the drive to recommunalise publishing to serve science not the market" arxiv.org/abs/2511.04820

My projects have always done all-sky measurements under all conditions because I'm concerned with the effects on wildlife, as well as interested in seeing the stars. For example, this paper --> iopscience.iop.org/article/10.1... where we show the influence of the % clouds on illuminance.

“From 2020 onward, a strong rise in space waste mass influx to the atmosphere can be seen. ... This indicates a substantial risk of long-term adverse effects on the atmosphere such as ozone depletion, radiative effects and changes in cloud formation, if no action is taken.” arxiv.org/abs/2510.21328

A call for scientists to halt the spoiling of the night sky with artificial light and satellites Scientists should do more to stand up to ‘big light’ and ‘big space’ and preserve this natural resource. Nature Astro online www.nature.com/articles/s41... arXiv: arxiv.org/abs/2307.00598

Deep-sea mining starves life in the ocean’s twilight zone www.sciencedaily.com/releases/202... 🦑🌎🧪

Lights out: can we stop glow-worms and fireflies fading away?

Let's ruin the night sky some more... www.scientificamerican.com/article/alar...

🚨Three Chinese astronauts couldn’t return to Earth after space junk hit their spacecraft. Scientists warn this could be just the first of more accidents caused by orbital debris. The situation is concerning. “There are a lot of people up there,” one source told me. My story @sciam.bsky.social 🧪

www.theguardian.com/environment/... (h/t Dr. Raul C Lima) @raulclima.bsky.social

"Grass spiders build webs near artificial light (...) Artificial light has a greater influence on web placement than do prey" From "Web placement in grass spiders (Agelenopsis pennsylvanica) is driven more by artificial light at night than by prey" by Walsh et al (paywalled) doi.org/10.1016/j.an...

Insightful paper about distance to cities and cloud composition for the distribution and reflection of light pollution. These kind of measurements should become standard for monitoring, eg, of urban lighting impacts particularly on biodiversity beyond the urban environment.

I'm used to the usual effect of clouds (reflection of light pollution, darkening of the natural sky), but it's interesting to see the zenith being darker than "normal" once the sky overhead cleared but Montreal was still covered, and that the zenith became brighter once the sky cleared over Montreal

This reminds me of a very interesting observation a couple in 2022: While taking SQC measurements from a park in Montreal's suburbs, I noticed that the zenith became darker just after the clouds cleared overhead but were still covering Montreal (2nd image). The clouds acted like a blanket over MTL

By O'Fins @ofinsgz.bsky.social exp 9 min, fov 10°. @space-environment.bsky.social

Book or paper reference request: I'm looking for histories of technology and electrification in the Gilded Age and the political and environmental context. In the vein of Empires of Light by Jill Jonnes, David Nye's Electrifying America, or Jeremy Zallen's American Lucifers, but in addition.

A very important step forward in our understanding of light pollution under cloudy skies, by Miroslav Kocifaj, Fabio Falchi and Frantisek Kundracik "An all-sky light pollution model for global-scale applications that embraces a full range of cloud distributions" www.pnas.org/doi/10.1073/...

AquaPLAN coordinator Elena Maggi @dipbiounipi.bsky.social was an invited speaker at 9th International Artificial Light at Night Conference #ALAN2025 today, @darkskyireland.bsky.social & @mayodarkskies.bsky.social hosting in Ireland. Her talk: "Coastal light pollution: a multi-stressor perspective"

O próximo martes 4 de novembro o noso colega Dr. John Barentine, do @space-environment.bsky.social (CSE) falará na Coruña sobre "The protection of Space". Será ás 19:30 no Planetario da Casa das Ciencias agrupacionio.com/gl/portfolio... Vémonos alí!

And this is how they steal the night sky from us

See You at ENLIGHT 2025! Together, we’ll share research, strategies, and inspiration to reduce light pollution and safeguard the beauty of our night skies. 📅 28–30 November | Novi Sad, Serbia @salvabara.bsky.social @aquaplan.bsky.social #lightpollution #ALAN

The 9th International Conference on Artificial Light at Night (ALAN2025) will be taking place next week from 28th-30th October in Westport, Ireland. This year’s speakers include AquaPLAN’s coordinator Elena Maggi from the University of Pisa. For more information go to: artificiallightatnight.org