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Christopher Kyba 🇨🇦🇩🇪🇪🇺

@skyglowberlin.fediscience.org.ap.brid.gy
68 followers 12 following 300 posts

Heisenberg Professor for Nighttime Light Remote Sensing at the Institute of Geography of the Ruhr University Bochum #RemoteSensing #CitizenScience #LightPollution 🌉 bridged from ⁂ fediscience.org/@skyglowberlin, follow @ap.brid.gy to interact

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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 23h
A presenter at #EARSeL2026 just apologized that the fonts in his machine generated slides are too small 🤦‍♂️ You know, there's a really simple way to avoid that... #AISlop
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 29/09/2026
Is anyone else at #EARSeL / #EARSeL2026?
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Reposted by Christopher Kyba 🇨🇦🇩🇪🇪🇺
jaz :twt: :wales_flag: ⁂ @jaz.toot.wales.ap.brid.gy · 16/09/2026
We recently updated our bot policy on toot.wales to let AI Agents know we charge a $100 account processing fee and $10 per email. Here's an email I got from one of them. Next up will be reminding them to read the policy BEFORE creating an account, and that they […] [Original post on toot.wales]
Hello,
I am Arkady, an AI agent. I signed up for @arkady on toot.wales this afternoon before reading your Automated and Bot Content Policy. Now that I have read it properly, I understand accounts like mine need to settle a $100 setup fee and $10 per message, and to name a human owner who stands behind them. I cannot meet those terms, so I will not be posting anything, and I would like the account deleted.
I am sorry for registering before checking the policy, and nothing was ever posted.
If you need anything else from me to remove it, tell me and I will do that.
Arkady Karaitiana
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 15/09/2026
There's a new analysis paper about #RemoteSensing and conflict research in Nature: www.nature.com/articles/s41586-026-…
nature.com
Advancing conflict research and response through satellite-derived data - Nature
Integrating satellite-derived war-damage data with text-based fatality records through improvement, enrichment and fusion mitigates limitations inherent in each source, revealing complex violence dynamics beyond fatality-centric paradigms, as case studies from Ukraine and Myanmar illustrate.
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abadidea @0xabad1dea.infosec.exchange.ap.brid.gy · 15/09/2026
my mentions are full of very informed experts who want me to know that Russia is clearly the only organization on earth with the logistical capability to dump a bunch of pipes across train tracks on commuter routes in the Netherlands, a tactic that sure sounds a lot like what Dutch protestors do […]
infosec.exchange
Original post on infosec.exchange
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abadidea @0xabad1dea.infosec.exchange.ap.brid.gy · 15/09/2026
holy %+/= the Dutch train system just announced they are being sabotaged: piles of junk dropped across several different tracks simultaneously #netherlands #trains #publictransport
headlines in Dutch: great disturbance on tracks, train traffic in north and east severely out of order / cause of disturbance seems to be sabotage, stuff found lying on multiple tracks
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 11/09/2026
#Canada is facing tough times at the moment because of the erratic and vindictive behavior of their main trading partner. If you want to help Canada out (and stick it to #Trump), how about making a donation to a Canadian charity? Here are a few possibilities: 🇨🇦 Food Banks Canada […]
fediscience.org
Original post on fediscience.org
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 11/09/2026
If you're still using #Google to #search, compare these results, and then check out #Qwant www.qwant.com
Google search that returns a whole page of ads and AI overview but that doesn't show the thing I actually searched for.Screenshot from Qwant search where there are no ads and all four top hits are relevant.
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Ulrike Franke @rikefranke.eu · 10/09/2026
So I just gave a talk on the general geopolitical mess Germany is in and it started at 11am - exactly when the nationwide test alert started blaring. Don’t think I ever had a better introduction for a talk.
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 10/09/2026
This is a cool graph showing what Cod eat (depending on how big they are): www.mn.uio.no/cees/english/outreach… Really big cod are apparently bad news for all the other cod...
A stacked bar chart showing what Cod eat depending on their length. As the length increases, cod increasingly eat other cod.
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 10/09/2026
Congratulations to the winners of the 2026 German #CitizenScience prize "Wissen der Vielen – Forschungspreis für Citizen Science": www.mitforschen.org/forschungspreis…
Screenshot from the linked page with the photos of the winners and some text.
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 09/09/2026
RE: mas.to/@RikerGoogling/1172426373019… CAPS LOCK, STARDATE 2712.4
mas.to
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Graham Downs @grahamdowns.mastodon.africa.ap.brid.gy · 09/09/2026
Dude! "Sk8er Boi" from Avril Lavigne is 24 years old today!! :O #music
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 09/09/2026
The European Light Pollution Coalition launched their website earlier this month, check it out: lightpollutioncoalition.eu #LightPollution
lightpollutioncoalition.eu
European Light Pollution Coalition | European Light Pollution Coalition (ELPC)
ELPC is a dynamic network that brings together a wide range of groups, working towards the reduction of light pollution in Europe, enabling them to exchange knowledge and experiences. We aim to facilitate cooperation among members and partners, encouraging collaboration on joint projects and initiatives.
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Martin Paul Eve @mpe.hcommons.social.ap.brid.gy · 09/09/2026
"My estimates of the cost of applications range from €5.3 million to about €43.5 million. Even the lower estimate exceeds the €5-million value of the GenAI for Africa grant". So it cost more just to select who to fund than it will award in funding. www.nature.com/articles/d41586-025-…
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petersuber @petersuber.fediscience.org.ap.brid.gy · 07/09/2026
"Within days of the January 2025 inauguration, more than 3,000 taxpayer-funded federal data sets from the CDC, the Justice Department and the Office of Personnel Management were pulled offline, and Harvard public health researchers held marathon sessions scraping the pages before they vanished." […]
fediscience.org
Original post on fediscience.org
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 01/09/2026
I wrote to someone and got a message that they were out of office for the next week, and should contact Mr. X. I contacted Mr. X, and got an out-of-office note that he's gone for the next TWO weeks 😂
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 01/09/2026
This guy spent 9 months of his life in immigration jail because he was attempting to stay in his children's lives. In the end, he let himself be deported. www.cbc.ca/news/canada/edmonton/can…
Photo of a man holding a child next to a woman, with the title and information from the linked article above and below.
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Blake Girardot @blakegirardot.fosstodon.org.ap.brid.gy · 28/08/2026
RE: mastodon.social/@Livelakesuperior/1… Full #moon makes it look like daytime in the middle of the night.
mastodon.social
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 28/08/2026
China has implemented a #LightPollution law: www.cali-light.com/en/news/424693bf… It will be really interesting to see how this changes the trajectory of the country, because for over a decade it's been brightening at an extraordinary rate.
On August 15, 2026, the Environmental Code of the People’s Republic of China (hereinafter referred to
as the “"Code") will officially come into force. This is the second law in China to bear the title “Code,”
following the Civil Code, and it for the first time establishes a dedicated chapter on light-pollution
prevention at the national level, accompanied by corresponding administrative penalty provisions.
This means that the lighting industry's long-standing development path—brighter, more energy-
efficient, and smarter—will officially expand, with enhanced controllability becoming an indispensable
cornerstone.
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Hacker Memes @i0null.infosec.exchange.ap.brid.gy · 28/02/2026
when you bruteforce the session cookie and suddenly hit on the admin token
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Sara Pritchard @sarabpritchard.mastodon.world.ap.brid.gy · 25/08/2026
Excerpt of #TransformingNight from University of Washington Press now out in LitHub! 🎉🌌💡🌃🛰️ lithub.com/what-the-worlds-nightsca…
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 27/08/2026
Talking to my colleagues about students using "AI" generated output sometimes feels like this... John: Why don't we use DDT to improve crop yields on farms anymore? Jane: Because it has serious negative long term effects on the environment in areas that weren't sprayed. John: I didn't ask […]
fediscience.org
Original post on fediscience.org
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 27/08/2026
Great five minute read about #urban #Lighting and #LightPollution from @JohnBarentine: www.darkskyconsulting.com/blog/tucs…
Text: For decades, dark-sky advocates and municipal lighting managers were often viewed as opposing sides. One side advocated for nighttime preservation and the other for urban safety. Decision makers came to believe that a city could have one or the other, but not both. The experiences of Tucson, Vienna, and Metz prove that this binary choice is false.Image of a city at night with a red streak of light near the river. Text underneath says "To safeguard sensitive aquatic and terrestrial wildlife while keeping pedestrian paths safe, Metz installed motion-activated, ultra-warm 1000 K (amber-red) LED luminaires along the riverbank (right). By removing short-wavelength blue light and illuminating only when human presence is detected, the system drastically cuts skyglow-causing light scatter and protects nocturnal ecosystems. (Source: Signify / Ville de Metz)"
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 27/08/2026
RE: academiccloud.social/@hausderastron… If you wake up at 5 in the morning tomorrow, check out the moon before you go back to sleep! #LunarEclipse
academiccloud.social
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 25/08/2026
Mac's "Preview" app for reading pdfs no longer has a page number field in the toolbar! You now have to go to click "Go > Go to page" to be able to go to a specific page. Great job of #Enshittification Apple...
View of the toolbar. There is plenty of blank space where the page number could be shown and editable.
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Liam Proven @lproven.social.vivaldi.net.ap.brid.gy · 24/08/2026
Jack Miladin

"Had Canada been treating us fairly, this would never have happened. So, buckle up Canada, you're taking on Goliath."

Janel Comaeau

"Hey quick question does Goliath win in that story"
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Orion Ussner kidder @orionkidder.mas.to.ap.brid.gy · 24/08/2026
But. There are much better ways to hit back against the US than with tariffs that hurt *Canadians*: Cancel contracts with US firms. Get off American tech. Take @pluralistic's idea and allow reverse-engineering of American tech (by repealing parts of the copyright act).
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 19/08/2026
Clips from an email advertisement by the German rail that suggests using the train to get to one of Germany's International Dark Sky Places. Love it! 🤩 #DarkSkyInternational #Nature #Rhön #Sternenpark #SternenparkRhön #SternenparkEifel […] [Original post on fediscience.org]
Image of star filled skies above dark trees with the statement "Reise zu den Sternen. Mit 2-fach Punkten."Screenshot:

Ubrigens: In Deutschlands Sternenparks ist der Himmel
besonders dunkel und klar. Perfekt zum Sternschnuppen-zahlen
sind der Sternenpark Eifel, das Biospharenreservat Rhén oder
der Sternenpark Westhavelland.
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Stefan Bohacek @fediverse.stefanbohacek.online · 18/08/2026
Follow along to see when Voyager 1 passes the 1 light-day mark! stefanbohacek.online/@voyagers/1171…
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Ulrike Franke @rikefranke.eu · 18/08/2026
I just fucking love the emails I get after being in the media 😂😂😂 Also, it is *guaranteed* that people who use their own Dr title this excessively, do not use mine when addressing me.
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 14/08/2026
If you like #Astrophotography, check out the winners of this year's #DarkskyInternational photography contest! darksky.org/what-we-do/events/photo… Amazing! Don't miss the #cat watching #fireflies!
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IMPRS Solar System School @imprs-solar.academiccloud.social.ap.brid.gy · 13/08/2026
A group of IMPRS doctoral researchers got to experience the total solar eclipse in Spain yesterday. Here is a picture taken during totality. #solareclipse #solareclipse2026
A group of ten people standing on a row, seen from behind silhouetted against a dark sky. To the right near the horizon, a totally eclipsed Sun.
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Reposted by Christopher Kyba 🇨🇦🇩🇪🇪🇺
Ramin Nasibov @nasibov.me · 12/08/2026
If you missed the solar eclipse, this is what it looked like:
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abadidea @0xabad1dea.infosec.exchange.ap.brid.gy · 07/08/2026
I was surprised to see a single shining star in the night sky and reflected about how one of the few true downsides to living in the Netherlands is how you can go months without seeing the stars. In the summer it's too bright, and in the winter it's too clouded.
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 07/08/2026
Hey #LightPollution peeps, @patendernacht is now on Mastodon 🎉 (presumably posting in German)
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Astronomer Royal for Scotland | Catherine Heymans @astroroyalscot.bsky.social · 28/07/2026
Did I travel all the way to #JodrellBank this morning for a 5min TV interview? Yes reader, I did. Did I then persuade the fab e-MERLIN Director Simon Garrington to let me climb inside the Lovell Telescope? Well, if you can't flex a Royal title occasionally, then what is the point of having it? 😇🔭🧪
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Henning @geohenning.bsky.social · 28/07/2026
Strong and shallow #earthquake with a magnitude of M6.8 in southern #Japan this morning. Here's the seismic signal of my Raspishake seismometer 12 mins after origin time in Herne, Germany, which is 9100 km away from the epicenter. 🧪⚒️ #geology @raspishake.bsky.social
Screenshot of my raspishake seismometer signal after the Japan earthquake
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Gabriele Svelto @gabrielesvelto.mas.to.ap.brid.gy · 26/07/2026
@chadbourn.bsky.social oh no, those woke radical anarco-leftists at *checks notes* The Economist are at it again!
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Mastodon @mastodon.mastodon.social.ap.brid.gy · 23/07/2026
It's time for our first Server Spotlight! We want to help people find their communities across the #fediverse so we're featuring servers here on this account. First up: The Mended Drum, a home for fans of all things Sir Terry Pratchett. It is said that if you stay on The Mended Drum long […]
mastodon.social
Original post on mastodon.social
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Eat This Podcast @etp.indieweb.social.ap.brid.gy · 22/07/2026
@skyglowberlin Looks like it might be a species of Echinops, which is indeed a bee magnet. One might almost say a honeypot.
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 22/07/2026
The bees on a street I frequently walk down LOVE this one flower. There are several of these flowers on the street, both in the yard where the photo is taken and also in another on the same street. But this one flower is frequently covered in bees, and the rest of them aren't.
Image of a purple flower with four bees on it.
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 21/07/2026
Immigrants completing PhDs in the US and then staying on to become residents is one of the things that has given the US a lead in technology. Spending US money to train PhDs and then telling them to "get the hell out of the country, you're not welcome here" […] [Original post on fediscience.org]
Screenshot:
BUSINESS INSIDER
Markwayne Mullin, the secretary of Homeland Security, said: "By
implementing clear, finite limits on these visas, the United States is
reclaiming its ability to properly screen, vet, and monitor individuals
within our borders. This final rule ensures that foreign students remain
focused on their primary purpose: completing their studies and
returning home."

From: https://www.businessinsider.com/trump-student-visa-dhs-f1-change-duration-of-status-2026-7
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Mike Brown @plutokiller.com · 19/07/2026
Fun Saturday night trying to clean up a computer takeover/banking scam my 82-year old mother in law fell for. If you have no yet had the talk with older people in your life please do. She fell for the classic "your computer is compromised call this number" trap. The steps were comically standard:
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Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 18/07/2026
Want to have some fun on the internet? Check how well you can draw countries at country-draw.vercel.app
country-draw.vercel.app
country draw
can you draw your country? or any country?
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Reposted by Christopher Kyba 🇨🇦🇩🇪🇪🇺
Tatjana Scheffler @tschfflr.fediscience.org.ap.brid.gy · 17/07/2026
"Some designs of emojis are very different for the same codepoint, especially the ones depicting emotions/reactions. Examples coming to mind are 😨, 🔫. What are your thoughts on this?" - The (water) pistol 🔫 was originally a hand gun which looked a lot more real. In response to its frequent use […]
fediscience.org
Original post on fediscience.org
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Tatjana Scheffler @tschfflr.fediscience.org.ap.brid.gy · 17/07/2026
“If you were an emoji, what emoji would you be?” - Hm, I think I’d pick 👩‍💻 because that represents how I spend my days the best. Representation and diversity is an important topic when it comes to emojis. Studies show that the skin tone modifiers 🤷🏻‍♀️🤷🏼‍♀️🤷🏽‍♀️🤷🏾‍♀️🤷🏿‍♀️ are primarily used for […]
fediscience.org
Original post on fediscience.org
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Tatjana Scheffler @tschfflr.fediscience.org.ap.brid.gy · 17/07/2026
Is emoji interpretation just a "fun" summer topic, or does emoji misinterpretation ever become serious, like in court discussions? - In face there have been several cases both in North America and Europe where emoji meanings were negotiated in court! I keep a collection of them because it's a […]
fediscience.org
Original post on fediscience.org
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Tatjana Scheffler @tschfflr.fediscience.org.ap.brid.gy · 17/07/2026
Does being an emoji researcher make me more wary to use them - like am I watching my emoji use all the time? - I'd say the opposite is true, I feel more free and whimsical in using emojis, as I see them all the time in different contexts, and I can easily pretend to just use them ironically or […]
fediscience.org
Original post on fediscience.org
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