For the final day of #BlackHistoryMonth, let's celebrate the current generation of Black scientists and engineers—including Ashley Walker (@that-astro-chic.bsky.social), researcher of planetary atmospheres and founder of BlackInAstro (www.blackinastro.com)! 🧪🪐⭐🔭 #WomenInSTEM

🎥 2026 AAS Journals Author Series Update! Frank Timmes, AAS Journals Scientific Editor, shares the “why” behind the series — why we create these videos, what the metrics show, how we reached 500+ videos, and how featured articles are selected. 🔭 youtu.be/1_U5WsSXzmU @publishing.aas.org

#BlackWomen #BlackHistoryMonth #Inventors #STEM #STEAM x.com/i/status/202...

Ok I promise this is the last picture of my comet that I'll post but I think this one is my favorite. Image by Beáta Ujvárosi.

"One explanation might be that some like Comet 41P have jets that make them spin faster and faster until they are 'blown to bits by their own spin,' Dr. Jewitt said." #TheAstronomicalJournal Read more in this gift article www.nytimes.com/2026/02/11/s...

You can't... repeal... a scientific finding. At that point it's just called lying about it.

A quad-jet to commemorate Ilya Malinin’s Olympic quad-jumps!

Congrats to @wierzchos.bsky.social on this beauty! C/2024 E1 (Wierzchoś) is putting on a show for southern hemisphere observers right now. 📷 by renowned comet photographer Gerald Rhemann. 🔭

🔭 Group picture from the referee training workshop at AAS247. I usually participate but had a conflict this time. Front and center, with a AAS corridors t-shirt, is Frank Timmes who has organized and run all of them to date.

Check this out: LSST Discovery Alliance Early Science program: Large: <$120,000 Medium: <$50,000 Small: <$12,000 Open to PIs based at U.S. academic institutions whose institutions can accept awards with no indirect costs. Proposals due Feb 17. lsstdiscoveryalliance.org/early-scienc...

Though less destructive than coronal mass ejections, moderate space weather events like stream interaction regions can still cause geomagnetic storms. Researchers have used machine learning to investigate the drivers behind these events. aasnova.org/2026/01/14/w... 🔭🧪

So happy to have contributed to this effort led by Sarah Greenstreet - now published in #ApJLetters! #AAS247 #TeamAsteroid #RubinObs @vrubinobs.bsky.social

✨ Happy 21st Birthday Europlanet! It's been a long journey since the foundation on 1 January 2005, and we would like to thank you highlighting 21 things we are proud of: www.europlanet.org/21-years-of-...

Quietly proud that we published 351 Research Notes of the American Astronomical Society last year, a new record. Short, moderated contributions on topics from multiple star systems (Vol 9, No 1: iopscience.iop.org/article/10.3...) to SETI and 3I/ATLAS (iopscience.iop.org/article/10.3...) cc @aas.org

✨ Wrapping up 2025 with our Top 5 read articles! Finally, #1: ‘New Constraints on DMS and DMDS in the Atmosphere of K218 b from JWST MIRI’ in The Astrophysical Journal Letters’ This research redefines how we search for life beyond Earth.🪐👉 https://doi.org/10.3847/2041-8213/adc1c8 #Exoplanets #JWST

✨ Wrapping up 2025 with our Top 5 read articles! At #3: ‘Search for Gravitational Waves Emitted from SN 2023ixf’! This study sharpens the tools for future discoveries and knowledge of our universe. 🌌👉 https://doi.org/10.3847/1538-4357/adc681 Come back tomorrow for #2! 👀#Astrophysics #Supernovae

Well done, comet Kacper!

A little 3I/ATLAS update building on @marshall-eubanks.bsky.social's nice RNAAS from last week. Given its non-grav acceleration and the rate at which it's losing mass, you can work out its size. The answer: a diameter around 1 km, very typical for comets. arxiv.org/abs/2512.18341 🔭 🧪

A recent scientific paper compared long-term mortality by vaccination status. I noticed that Table 2 drew a lot of attention, but was actually included in the paper as a static image. So I built a quick dataviz project to explore. 🧵

THREAD. My parents' cat Bridget vanished. As the weeks dragged on they became ever more worried, so to distract himself my dad began to paint Bridget's adventures, imagining her travelling through time and popping up at some of art & music's most important moments. I've collected his work here...

#AGU25 folks, there is a rapid- response town hall TODAY on the #NCAR dismantling at 1 pm, La Nouvelle Orleans ballroom C (per an AGU media advisory)

The dismantling of NCAR should be the trending story on Bluesky, not the fucking Oscars leaving ABC for YouTube.

Here's our reporting on the proposed dismantling of the jewel of US atmospheric science, @ncar-ucar.bsky.social. The plan is to break NCAR apart and disburse some parts to other locations (like the research aircraft fleet) and eliminate others. www.nature.com/articles/d41... 🧪 #AGU25 #climate

Hi friends, please help me spread the word on the open professor position in #planetaryScience we have in Bern 🔽

This would be a terrible act. It was also my last major assignment at NSF so it feels personal.

Attendance at US-based science conferences is bouncing around this year but generally down. #AGU25 has ~10k fewer this year! I explored these trends for @nature.com — including solutions to keep conferences local & productive: www.nature.com/articles/d41... 🧪

Not easy to get to sleep tonight - have burnt the bridge of whatever career I had left and really don’t feel that my opinions are so extreme that that should have been necessary

NEW: When she worked at NASA’s JPL, Amy Mainzer used to rack up high scores on the 1979 Atari game ASTEROIDS. Very apt, now she’s in charge of a space mission that will save the world from killer asteroids. Planet Protector, my new feature for @science.org, is live. www.science.org/content/arti...

NSF reorganization is, frankly, a bit odd, and we haven't run a story on it partly because it's hard to know what to make of it. The impetus for reorg, as I understood it, was to limit the siloing that occurs because NSF has so many (35ish) divisions. Now there will be 50+ sections.

Yesterday was bittersweet. I lunched w/ former coworkers at GEO/AGS and saw the NSF building for the last time. I got caught up on folks’ lives and was reminded of everything that has been lost & taken in 2025. I also got my Director’s Award certificate, shared with 44 others for solar eclipse work!

Some have argued to me strongly that even if Loeb is wrong, he’s getting people interested in 3I/ATLAS and that’s a good thing for science. But Loeb isn't just wrong, he's recklessly following an old playbook that got 39 people killed in 1997. sites.psu.edu/astrowright/...

An outstanding PhD dissertation about important, original Venus science. Superbly written, rigorous, spans theory and observation. The public defense was also excellent.

What’s your cat up to today? Here’s Jaxon enjoying my cup of water #caturday

Information and traveler recommendations from @agu.org for #AGU25 regarding US "Federal presence in New Orleans": www.agu.org/agu25-neworl...

1st quarter-final of ✨ #planetaryScience image of 2025✨ This round features Mars 🧪⚛️ 🗳️ Voting ends on Monday, Dec. 9, at 3 p.m. UTC/4 p.m. CET/10 a.m. EST/7 a.m. PST/midnight JST. Here are the four quarter finalists 🔽

Stars appear to sweep over NSF–DOE Rubin Observatory in this long exposure thanks to Earth's rotation. But Rubin will soon capture objects truly in motion! Over the next 10 years, it'll spot millions of changes each night & generate more data than all human writing in history🤯

chapter 7 about evolutionary processes in the Centaurs region by Kokotanekova et al. has hit the arXiv! arxiv.org/abs/2511.19554

"Huge if True" podcast visited Mt. Lemmon and the Catalina Sky Survey @catalinaskysurvey.bsky.social youtu.be/LOn-mmezykQ?...

Musk's people infiltrated the GSA technology arm early on and demanded root-level access to computer systems, trying to circumvent normal security procedures. Here's one example where they pushed so hard they forced someone to resign rather than give in. Why did they do this?

youtu.be/TrUo5p_fJkA 🔭 A Conversation with Scientific Editor Jing Wang Jing Wang chats about her research and role as a Scientific Editor for the AAS Journals.

Saturn's moon #Enceladus is a top target for us in our #Voyage2050 long-term planning period. No space agency has ever landed on Enceladus. And yet this moon has enormous potential for new science, particularly in the realm of habitability. 1/ #CM25 🔭

Abortion bans have killed another woman in Texas. www.propublica.org/article/texa...

We need a reimagined LPSC flavored meeting and the locale should be Tucson in March, after the gem show. Plenty of hotel choices along the free tram line that goes to the convention center. Visit Tucson is onboard to support this. If anyone has the bandwidth to invent the meeting we've got the city.

Make plans to tune-in to YouTube tonight at 10pm Eastern/7pm Pacific for a Live Audiophile Roundtable with producers Mitch Easter and Don Dixon who will do a deep dive into the making of Chronic Town and Murmur. www.youtube.com/live/Mj9pKkn...

youtu.be/z0th9YvNgCo 🔭 AAS Journal Author Series: Anastasios (Andy) Tzanidakis on 2025ApJ...991..118T Andy Tzanidakis (University of Washington) chats about his article on stars with irregular and aperiodic luminosity dimming events.

I had the opportunity to review the work experience and skills of numerous people who were laid off or fired from public health jobs by Donald Trump. I want every taxpayer to know that the US has lost an immeasurable number of the smartest, most experienced, and hardworking people on the planet.

“In one instance, furloughed employees were given just days to temporarily return to work (at NASA Goddard) and help empty entire buildings of highly specialized equipment, …” www.cnn.com/2025/11/04/s...

Easter egg bush? Saw many bushes with these strange berries on a walk last weekend. Very striking shades of blue, green and purple in contrast to the yellow, red and orange trees. Anyone know what these are? Northern Virginia

Reporter @virginiagewin.bsky.social interviewed 19 current and former US federal agency scientists about the science being dismantled at EPA, NOAA, NASA, CDC, NIH, & USGS. They say it's making America unprepared for environmental and public health crises. www.nature.com/articles/d41...

With the US government absent from the COP30 global climate summit, it will be up to others to avert catastrophe go.nature.com/4ofcrH6