Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 07/10/2026I'm grading student papers, and when I started one tonight I was like "hmmm, that sounds familiar". Weirdly, the paper I graded yesterday has nearly the same start, even though the topics are different. None of the other students in the class used this start […] [Original post on fediscience.org] 111
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 03/10/2026The moon struggling against the clouds and the overilluminated Parthenon. If only European cities would turn off their monument lighting when the full moon is out... It would be so amazing to be able to see #CulturalHeritage buildings the way they […] [Original post on fediscience.org] 004
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 03/10/2026I missed this when it came out, maybe you did too. xkcd.com/3290 029
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 02/10/2026More Canadians attended #EARSeL2026 than US Americans! 000
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 11/09/2026Alternatively, if you have a child around age 10-12 who is learning English and is interested in geography and history, pick up a subscription to Kayak magazine: www.canadashistory.ca/magazines 101
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 11/09/2026If you're still using #Google to #search, compare these results, and then check out #Qwant www.qwant.com 111
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 10/09/2026This 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... 004
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 10/09/2026Congratulations to the winners of the 2026 German #CitizenScience prize "Wissen der Vielen – Forschungspreis für Citizen Science": www.mitforschen.org/forschungspreis… 001
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 01/09/2026This 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… 000
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 28/08/2026China 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. 002
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 27/08/2026Great five minute read about #urban #Lighting and #LightPollution from @JohnBarentine: www.darkskyconsulting.com/blog/tucs… 011
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 25/08/2026Mac'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... 012
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 19/08/2026Clips 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] 124
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 22/07/2026The 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. 101
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 21/07/2026Immigrants 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] 064
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 15/07/2026This is AWESOME! Cast members from different #StarTrek series make the case for reducing #LightPollution and preserving our ability to experience the stars from here on Earth: www.youtube.com/watch?v=Hc2zeKd-xf0 #DarkSkyInternational #StarTrek60 0014
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 14/07/2026[obituary] I just learned that Steffen Lohse died unexpectedly this week in his 50s. Steffen took the photos Nature Cities used as the cover image in the month our #Nachtlichter article was published. I remain very grateful to Steffen for his fantastic […] [Original post on fediscience.org] 000
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 07/07/2026A student showed this graph in a presentation today, and at first I was thinking it was #AISlop he had made and therefore possibly a case of plagiarism. But it turned out he got it from the Bundeszentrale für politische Bildung (German Federal Agency for […] [Original post on fediscience.org] 001
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 03/07/2026Here's a job for a geographer that speaks both English and German at the @ruhr-uni-bochum.de jobs.ruhr-uni-bochum.de/jobposting/… #FediHire #AcademicJobs #Geography #GeographyJobs 134
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 30/06/2026[Literal toilet humor] A few weeks ago I was a guest at a research institute, and when I went to the bathroom, their urinals had sensors to flush when a person left. (So far so normal) The sensors were of course installed in a fixture to hold them in place […] [Original post on fediscience.org] 000
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 04/06/2026Thanks to @dimllychlyngarw and @Szescstopni for making the world a better place 😂😂😂 (And yes, they do have multiple copies of the same "book" on the shelf...) 004
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 04/06/2026This "book" on a shelf in the lobby of the hotel I'm staying at feels like a metaphor for the age of generative artificial "intelligence". 126
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 29/05/2026Job offer: iiasa.ac.at/sites/default/files/202… #CitizenScience #FediHire #AcademicJobs 001
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 11/05/2026I'm preparing for my class tomorrow where I teach my undergraduates about plagiarism and LLMs. I decided to ask some LLMs questions about myself. One of them led to a funny place... "I AM YOUR FATHER" 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣 #LLM #AISlop 114
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 11/05/2026Does anyone else find it bizarre that these authors say the correlation coefficient is positive in one direction and negative in the other? 000
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 09/05/2026I'm very thankful to the astronauts on the International Space Station for taking a series of photos of Chennai, India for me. They used the lens I requested, but the longest exposure time they used was ~0.07 s, when I really need them to take a much longer […] [Original post on fediscience.org] 001
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 08/05/2026Dear Hive Mind: This photo shows two cities in India, but I don't know which they are. I would like to know out which they are so that I can figure out what all the bright dots in the image are. The original image (with much higher resolution) is here […] [Original post on fediscience.org] 002
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 08/05/2026Here's the original 000
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 08/05/2026WOW! An astronaut on the #InternationalSpaceStation captured a photo of the last rays of sun hitting a tall mountain in the #Himalayas (I've adjusted the contrast to show more detail in the parts that aren't directly lit by the sun. Original here […] [Original post on fediscience.org] 157
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 07/05/2026I was really honored to give a talk (remotely) at NASA Goddard today! Thanks for the invitation, and I hope we'll stay in touch! #RemoteSensing #NighttimeLights #NightLightRemoteSensing #VIIRS_DNB #SDGSat1 #ESA #EarthExplorer #EarthObservation #LightPollution 011
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 06/05/2026When a reporter asked about leaked MarsX projections that this would likely result in the deaths of more than half of the colonists, Musk replied _____________________. Fill in the blank! I'll mail a cool "Europe by day/night" holographic postcard to the […] [Original post on fediscience.org] 042
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 06/05/2026😂😂😂😂😂😂😂 Hey Search Assist, let me introduce you to this guy named Richard. He thinks you're capable of thinking even though you clearly have no idea what the words you produce mean. 000
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 06/05/2026I'm teaching an undergraduate class this semester called "Introduction to Nighttime Lights", and I want to share this (from the EU) because it's absolutely AMAZING how much more efficient lights have become in the last 15 years. For outdoor applications […] [Original post on fediscience.org] 111
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 01/05/2026Uhhhhhhh.... No Hablas? 001
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 28/04/2026The #MfN in #Berlin is hiring: jobs.museumfuernaturkunde.berlin/jo… #CitizenScience #AcademicJobs #ScienceJobs 011
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 21/04/2026Then I laid out the logic and observational based case for geocentrism, and finally ended with the standard Galileo->Kepler->Newton story that I learned in intro to astronomy (with some references to earlier cultures). I hope it helped them to reflect on how […] [Original post on fediscience.org] 010
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 21/04/202612 years ago, everyone was making fun of Americans for that poll that 1/4 of surveyed people said "the sun goes around the Earth" instead of "the Earth goes around the sun". I didn't think the pile-on was appropriate for a bunch of reasons (e.g. both answers […] [Original post on fediscience.org] 213
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 16/04/2026The @ECSA is hiring: www.ecsa.ngo/2026/03/18/job-opportu… #FediHire 023
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 13/04/2026Important new paper from @LeibnizIGB on the dose-response curve for #LightPollution across a number of different species: www.sciencedirect.com/science/artic… #Ecology #Pollution #ALAN 001
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 08/04/2026A paper that I co-authored was just published (#OpenAccess) a few minutes ago in Nature 🎉 www.nature.com/articles/s41586-026-… Here's a short thread about what we did and what we learned 👇 #LightPollution #Energy #ALAN #RemoteSensing […] [Original post on fediscience.org] 1414
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 07/04/2026[US targeting during war] If you have some time, this article is worth a read: www.theguardian.com/news/2026/mar/2… 002
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 27/03/2026BREAKING NEWS: Trump has decided to go all in on devaluing the US dollar 133
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 27/03/2026This is amazing: it turns out that at least one ant species has come up with a way to use the moon as a compass - despite the fact that the moon's position in the sky changes dramatically night after night. Short commentary […] [Original post on fediscience.org] 022
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 10/03/2026I updated my Firefox and have a question for those of you that updated already. When I go to the "AI" controls, I see this. Is this "AI" translation the "normal" Firefox translation that's been around for quite a while, or is this something new? I want to […] [Original post on fediscience.org] 001
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 10/03/2026I was today years old when I realized German and English speakers write the titles of books in the opposite direction on the spine. 123
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 08/03/2026Raising "defense" spending to 5% of GDP is a terrible idea for lots of reasons. But a sick side effect of higher "defense" spending is that the more resources the army has, the more likely that the old men who dream of sending your children to war will actually do it. 002
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 05/03/2026I don't know why anyone would complain about the submarine torpedoing that Iranian boat. After all, it was carrying "173 tons of war supplies, comprising 4.2 million rounds of rifle ammunition, almost 5,000 shrapnel-filled artillery shell casings and 3,240 […] [Original post on fediscience.org] 011
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 03/03/2026The call for nominations for the German #CitizenScience research prize is open: www.mitforschen.org/ein-preis-fuer-… 20,000€ for first place 10,000€ for second place 5,000€ for third place The prize goes to a […] [Original post on fediscience.org] 003
Christopher Kyba 🇨🇦🇩🇪🇪🇺 @skyglowberlin.fediscience.org.ap.brid.gy · 02/03/2026Most people in brightly lit countries probably take for granted that clouds are bright at night, but this is completely unnatural. You can see it better in this pair of photos we published in a later paper (titled "Red is the new black") […] [Original post on fediscience.org] 0310