From Maria Vincent @themariavincent.bsky.social : Exocomet detections are becoming more promising and well studied. So, naming them is of more importance now than ever. Today’s bite summarizes a paper that proposes a nomenclature for exocomets. ⚛️ 🔭 ☄️ 🧪 astrobites.org/2026/01/28/h...

8 de janeiro agora é o dia da vitória da democracia 🇧🇷✊ É pra lembrar o que aconteceu, defender o Estado Democrático de Direito e garantir que nunca mais se repita. Democracia é voto, é Constituição e é respeito. 👇

I've put up one of the most ambitious (and lengthy) articles I've written on the Milky Way. The timing works out well because this year is the 75th anniversary of the detection of the 21 cm line, one of the events that started the Golden Age of galactic cartography. kevinjardine.dev/blog/post-16/

Lula impõe veto, reforça defesa da democracia e expõe isolamento do Congresso no 8 de Janeiro Sem chefes da Câmara e do Senado, presidente rechaça projeto de dosimetria e defende soberania nacional em cerimônia no Planalto jornalggn.com.br/politica/lul...

🚀 Ei, você que tá no CadÚnico! Já pensou em estudar marketing, administração, gastronomia ou tecnologia sem pagar nada e direto no celular? 📱✨ Com a Plataforma Seu Primeiro Passo, do Programa Acredita, você tem acesso a cursos 100% online e gratuitos que abrem portas para o seu futuro. 👇

Neblina e pizza

How Gaia revealed the Milky Way - #Astronomy - ift.tt/NPFC07D

Latin had six noun cases, but in all Romance languages except Romanian, nouns and adjectives only have one singular form and one plural form left. What happened? This extra large infographic tells you how the Latin case system collapsed – and why it's the accusative case that lives on in Romance.

Just like every year, a friendly PSA: “Feliz ano nuevo” means “happy new anus.” “Feliz año nuevo” means “happy new year.” Wishing folks either one is nice, but make sure you’re using the one you mean.

From @noirlabastro.bsky.social: We had an incredible year of science and discovery at NOIRLab, and we’re celebrating by admiring some of our most dazzling stellar snapshots. #astronomy

Ending the year with a striking #woodcut… This 16th-century broadside records the apparition of a comet on 11 November 1577 above the Scheldt with Antwerp’s skyline below. /1 #bookhistory #rarebooks 💙📚📜

After reading through references in more recent papers, it looks like this 1954 paper is the origin of the term "Sagittarius arm" (and possibly "Orion arm" as well). ui.adsabs.harvard.edu/abs/1954BAN....

Stranger love story things

Datafolha: Otimismo volta a subir e atinge maior nível desde início do 3º mandato de Lula 69% acreditam que a vida vai melhorar em 2026; desemprego baixo e inflação sob controle impulsionam percepção positiva jornalggn.com.br/politica/dat...

Foggy Frozen Mississippi River

As far as I can tell, the first "race track" schematic model of the Milky Way appeared in a Soviet paper in 1964. Here's an English translation done in 1965: ui.adsabs.harvard.edu/abs/1965SvA....

Save this, it's perfect.

Engarrafei e rotulei os últimos vinhos de dezembro. Agora só voltarei a engarrafar novos no ano que vem!

Played it twice now. First time, we realized at the end that we were doing it wrong which is why it didn't make sense. Second time, we got out the wine & reread the instructions & played it correctly & it was really fun! (even though we didn't "solve" the #Voynich Manuscript...maybe next time!) 🧵

Here's a preview of my next Gaia DR4 article scheduled for January. What could Gaia DR4 tell us about the inner galaxy? The first image is figure 8 from Kwee 1954, which may be the first map ever published for the inner galaxy.(ui.adsabs.harvard.edu/abs/1954BAN....) Uses old galactic longitude.

Lançamos hoje o número 28 da Revista Brasileira de Astronomia. Ele pode ser consultado online gratuitamente através do endereço sab-astro.org.br/wp-content/u... Aproveitamos para desejar boas festas e um feliz 2026 a todos nossos associados e seguidores!

Hubble images show the formation of two enormous dust clouds caused by collisions between kilometre-sized celestial bodies around the star Fomalhaut. The dust clouds can easily be confused with real planets – an important clue for future observation missions 🔭 www.mpia.de/news/science...

From Kasper Zoellner: Just when you think exoplanet demographics can’t get any weirder, this thing shows up. A hot Jupiter with a thing for carbon that may have been a star but now lives with a dead one. Confused? Read today’s bite. ⚛️🔭☄🧪 astrobites.org/2025/12/19/a...

Many English words stem from Latin. But did you know there are Latin words that ended up in English two times - in two different forms? These are called doublets. Over the next days, you'll see doublets in French, Spanish, Italian, Portuguese, Romanian, Catalan, Galician, Dutch, and English again.

From Dr. Sebastian Voltmer @SeVoSpace www.instagram.com/sebastianvol... 3I/ATLAS with its two tails, captured during its closest approach to Earth. In the distant background, galaxies in the constellation Leo are visible.

Nice image of our interstellar visitor 3I/ATLAS from Dan Bartlett in California and the comet-ml. Note that the coma is green and there is a blue tail and anti-tail. This is from a 2 hour exposure.

From Sandy Chiu: Cosmic rays don’t always reveal their origins honestly—magnetic fields can create “mirage halos” that look like real gamma-ray sources. New simulations show how a single pulsar can masquerade as three, reshaping how we interpret TeV observations. ⚛️🔭☄🧪 astrobites.org/2025/12/13/o...

Sobre a língua copta youtube.com/watch?v=Q1qJ...

A Diretoria da SAB tem o prazer de anunciar a realização da XLIX Reunião Anual da Sociedade Astronômica Brasileira, que ocorrerá de 25 a 30 de outubro de 2026, no Praiamar Natal Hotel & Convention, em Natal - RN. Para mais informações, acesse a página do evento: sab-astro.org.br/eventos/reun...

Very interesting to see this. Cartography is not just about science but about shared usage. Looking forward to seeing if any of the "new" OB associations in this paper get used by other researchers.

In the latest of our #UndergradResearch series, discover how to estimate the metallicities of early galaxies using line ratios from JWST with Vidit Bhandari. ⚛️🔭☄🧪 astrobites.org/2025/12/09/u...

Really interesting analysis here on how claims get amplified by our current media environment (and a rebuttal of sorts to those who argue that Avi Loeb's alien spacecraft hype is good because any science engagement is good engagement): www.cip.uw.edu/2025/12/03/3...

Quick clarification about this image of interstellar comet 3I/ATLAS 👇 The big background is a wide-field deep exposure from ground-based amateur telescopes. The blue inset is a Hubble Space Telescope close-up of the inner coma. Same comet, two very different zoom levels and physical scales.

The word ‘law’ is connected with ‘legal’, but etymologically they’re entirely unrelated. ‘Law’ is related to the verbs ‘to lie’ and ‘to lay’. It comes from a Germanic word meaning “things that are laid out”. ‘Legal’ is related to ‘loyal’. Both derive from Latin ‘lēx’ (law). Zoom in to learn more:

Comet 3I/ATLAS shows activity in Juice navigation camera teaser www.esa.int/ESA_Multimed...

I borrowed and edited a reading/writing/discussion assignment from @jillianscudder.com for my #Astro101 class on claims of 3I/ATLAS being alien tech... and it went WELL! 🔭🎢 A few years ago when I tried this, it flopped. All the news media was still too deferential to the "Harvard astronomer" (1/n)

What’s the most succesful Germanic colour word? It’s the dullest of them all. The Germanic word *grīs (grey) was borrowed into Romance, becoming ‘gris’ (French, Spanish etc.) and ‘grigio’ (Italian). English ‘grey/gray’ has a different origin though: it’s related to German ‘grau’. Click for more:

From Lindsey Gordon @lcgordon.bsky.social : This Beyond post will go through the basics of numeric simulation jargon with diagrams and examples to help you get moving in astrophysical simulations. ⚛️🔭☄🧪 astrobites.org/2025/12/02/a...

New lecture from my solar system class is online- all about the origin of the moon, and why we think a giant impact is to blame! 🌔 🔭🧪🎢 youtu.be/eNOQvv_90Kc

2,700-Year-Old Total Solar Eclipse Observations Give Insight to Our Ancient Solar System (and to Earth Rotation) www.discovermagazine.com/2-700-year-o...

I'm best known these days for visualizing Gaia Mission data but I've also tried my hand at visualizing HI velocity data. Here, for example, is a slice of HI4PI. I'd love to see more papers about HI4PI.

Gaia DR4 is expected to be released in December 2026, so today is a good day to start the countdown! Why is Gaia DR4 going to be so exciting? Here are several reasons. kevinjardine.dev/blog/post-13/

I wrote some articles on Medium, starting with this one, and I expect I’ll write more soon. medium.com/@steve.desch...