American Astronomical Society (AAS)
The mission of the American Astronomical Society is to enhance and share humanity’s scientific understanding of the universe as a diverse and inclusive astronomical community.
aas.org
- Nominate Plenary Speakers for AAS Meetings Plenary talks take place in dedicated 50-minute slots at AAS meetings. These talks typically cover topics that are of broad interest to the wider AAS community. Self-noms accepted. docs.google.com/forms/d/e/1F... 🔭
- The Heineman Foundation, the American Institute of Physics, and the AAS are pleased to announce Alice Shapley as the winner of the 2026 Dannie Heineman Prize for Astrophysics. www.aip.org/aip/alice-sh... 🔭 @aip.bsky.social
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- 🎥 New AAS Journals Video! Ed Young (UCLA) discusses his article on the phase equilibria of silicate, iron metal, and hydrogen—and what it means for the interiors of sub-Neptunes, challenging long-held assumptions about differentiated cores and mantles. 🔭 youtu.be/Kp4CVTIryUs
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- Reposted by American Astronomical Society (AAS)Congrats to our U of A astronomy students for their @aas.org Chambliss Student Poster Competition wins! Rafael Bertolotto, Olivia Culbert & Kate Gold shined among 480+ entries nationwide. Read more about their stories and their posters: bit.ly/4kcJPx2
- Ben Cassese (Columbia Univ, Yale Univ) discusses his article on a differentiable solar system ephemerides software instrument and where this work can take us next. This series connects authors with their article, their human story, and the larger #astronomy community. youtu.be/pwhW8q8xGX8 🔭
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- AAS Member Jonas Zmuidzinas Receives James Craig Watson Medal The National Academy of Sciences has recognized AAS member Jonas Zmuidzinas for seminal work on novel detection technologies and instrumentation. aas.org/posts/news/2... 🔭
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- ☄️ New AAS Journal Author Series! Ariel Graykowski (SETI Institute) discusses 103P/Hartley 2, showing its activity has declined by about an order of magnitude since 1991, thanks to observations from citizen astronomers worldwide. youtu.be/1GkQw6x0ofc 🔭
- Congratulations to the #AAS247 Chambliss Student Award Winners The AAS is pleased to announce the Chambliss Astronomy Achievement Student Award winners from the 247th AAS meeting in Phoenix, Arizona, in January 2026. Congratulations, all! 🔭 aas.org/posts/news/2...
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- ✨ Exoplanet Atmospheres 2026: Regular & Presenter registration deadline is Tuesday, 17 February. Join us in Denver (16-20 March 2026) for an unforgettable AAS Topical Conference Series! 👉 Register today: aas.org/meetings/exo...
- 🔭 Evgenij Zubko (Univ of Helsinki) chats about polarimetric measurements of the interstellar comet 3I/ATLAS and how it compares to distant solar system comets. www.youtube.com/watch?v=F30v... This series connects authors with their research, their human stories, and the larger #astronomy community.
- AAS 2026 Congressional Visits Day In partnership with the American Association of Physics Teachers, we're bringing scientists to DC from 13–15 April to advocate for the importance of science and education. No prior policy experience is required. Apply by 1 February: aas.org/applications... 🔭
- HEAD Awards Rossi Prize to Henric Krawczynski The top prize in high-energy astrophysics has been awarded to Henric Krawczynski of Washington University in St. Louis for his contributions to the theory, instrumentation, and scientific interpretation of X-ray polarimetry. aas.org/posts/news/2... 🔭
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- 🔭 New AAS Journal Author Series! Thibault Lechien (Max Planck Institute for Astrophysics) talks about 16 Be + sdOB binaries with well-measured masses & what their models reveal about stable, mostly conservative mass transfer. www.youtube.com/watch?v=mIDb...
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- Read more about the bills passed yesterday (aas.org/posts/news/2...), and thank your members of Congress today! aas.org/action-alert...
- AAS 2026 Congressional Visits Day This year, in partnership with @aapthq.bsky.social, we're bringing scientists to DC from 13–15 April to advocate for the importance of science and education. No prior policy experience is required. Apply by 1 February 2026: ow.ly/mb4x50XKV87 @policy.aas.org 🔭
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- 🔭 In the latest AAS Journal Author Series, Chrystian Luciano Pereira & Felipe Braga-Ribas share how high-cadence light curves suggest a confined ring system — making Chiron the fourth known small body with rings. www.youtube.com/watch?v=qMVE...
- What an INCREDIBLE week in Phoenix for the 247th AAS meeting! Thank you to everyone who attended, presented, organized, exhibited & supported the meeting — we truly couldn’t have done it without you. 💙 We’ll be sharing more photos and recaps in the coming days & weeks, so keep an eye out! #AAS247 🔭
- AAS announced the recipients of its 2026 prizes for outstanding achievements in research & education. aas.org/press/aas-na... 🔭 2026 Henry Norris Russell Lectureship, celebrating a career of eminence in astronomical research, goes to Lars Hernquist (Center for Astrophysics | Harvard & Smithsonian).
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- Did you know that the #AAS247 press conferences are open for all conferences attendees? If you've never been, check out the meeting schedule to hear astronomers present work directly to members of the media. @press.aas.org
- iPosters. Coffee. Science. Repeat. ☕📊✨ Day 2 of #AAS247 in Phoenix! Photos by © CorporateEventImages/Phil McCarten 2026 📷 More photos on our Instagram account. Follow us there too: @aas_office
- Take five minutes at #AAS247 to write a postcard to Congress in support of science. There's suggested text to help and we'll take care of postage. Every voice matters. 🔭
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- ✨ Scenes from the #AAS247 Exhibit Hall! Astronomers, educators, students, and journalists have taken over Phoenix 🌵 for a week packed with science, history, and community at the 247th meeting of the AAS. #ExploreAstronomy
- Thank you US Senator Mark Kelly for welcoming #AAS247 attendees to Arizona and for your continued support of the astronomical sciences. We’re grateful for your ongoing advocacy for science and discovery. #ExploreAstronomy Photo by © CorporateEventImages/Todd Buchanan 2026 🔭
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- The exhibit hall is officially open! #AAS247
- Meet the #AAS247 social media team! You'll spot us all week interviewing attendees and spotlighting your #AstroFashion! We'd love to hear about your meeting experience so come say hi for a chance to feature on one of our channels. (Don't forget you can tag us too!) #ExploreAstronomy 🔭
- Join Bill Harris & Marta Reina-Campos as they talk about their article on ultracompact dwarf galaxies and luminous globular clusters in the El Gordo cluster — and what this research tells us about how galaxies grow and evolve. 🔭 youtube.com/watch?v=CfIicwWMUCc&feature=youtu.be @publishing.aas.org
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- The AAS is deeply concerned by the recent announcement that the NSF intends to “restructure” the NSF National Center for Atmospheric Research (NCAR) by narrowing the scope of its scientific investigations and stripping it of key assets used in those investigations. aas.org/posts/news/2... 🔭
- Beth Brown Memorial Award Winners for 2025 Three winners of the AAS-sponsored Beth Brown Memorial Awards announced at the recent joint meeting of the National Society of Black Physicists and National Society of Hispanic Physicists. aas.org/posts/news/2... 🔭
- 🔭 Jing Wang, Scientific Editor for @publishing.aas.org, discusses her research & editorial role working with authors, referees & the broader astronomy community. This series aims to connect our Scientific Editors with their human stories & with the community that makes the AAS Journals possible.
- First time at #AAS247? You’re not alone! ✨ Check out this orientation guide from the AAS Education Committee, created to help students and first-time attendees navigate the meeting. 🔭 aas.org/meetings/aas... @education.aas.org
- Matthew Hopkins (Univ. of Oxford & Univ. of Canterbury) chats about his article on 3I/ATLAS and what it tells us about the interstellar object population — and what comes next. 🔭 📺 Watch now: www.youtube.com/watch?v=zz3e...
- 🔭 Abstract submission for AASTCS 11: Exoplanet Atmospheres 2026 closes Friday, 19 December at 11:59 pm ET. Share your latest work and join a discussion-rich, single-track meeting with leaders across exoplanet atmosphere science. Submit now before it's too late! aas.org/meetings/exo...
- AAS 2026 Congressional Visits Day This year, in partnership with @aapthq.bsky.social, we're bringing scientists to DC from 13–15 April to advocate for the importance of science and education. No prior policy experience is required. Apply by 1 February 2026: ow.ly/mb4x50XKV87 @policy.aas.org
- ✨ Andy Tzanidakis (Univ of Washington) chats about his article on stars with irregular, aperiodic luminosity dimming events & where the science goes next: youtu.be/z0th9YvNgCo 🔭 The AAS Journal Author Series connects authors w/their research, their human stories & the broader astronomy community.
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- 🔭 #AAS247 KiddieCorp Children's Program On-site childcare will be provided by KiddieCorp, a trusted leader with over 40 years of experience and a longstanding partnership with the American Academy of Pediatrics. Early registration is strongly encouraged: form.jotform.com/KiddieCorp/a...
- Don’t miss the abstract deadline — Wednesday, December 19! Abstract submission and registration are open for the 11th AAS Topical Conference Series (AASTCS 11): Exoplanet Atmospheres 2026, taking place 16–20 March 2026 in Denver, Colorado. aas.org/meetings/exo... 🔭
- 🔭 It’s December & that means one of the best celestial events will grace the skies. The Geminid meteor shower should peak between Saturday night & Sunday morning, 13–14 December. Read more: buff.ly/7ZBWgxg Subscribe to Sky & Telescope, so you’ll never miss any of the latest astronomy news & events!
- The International Astronomical Union (IAU) encourages applications for new Individual and Junior members to be admitted in 2026. Apply by 31 December 2025. aas.org/posts/news/2... 🔭
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- Meet Enrico Landi, Scientific Editor for the AAS Journals! In this special AAS Journal Author Series episode, Enrico shares insights about his research, his editorial role, and what it’s like to help guide the work that shapes modern #astronomy. 🎥 youtu.be/A-PG7HYE3iM @publishing.aas.org 🔭
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- 2026 LAD Laboratory Astrophysics Prize Daniel W. Savin will receive Laboratory Astrophysics Division's highest honor in recognition of contributions to studies in X-ray astrophysics & early universe star formation & extensive service to the laboratory astrophysics community. aas.org/posts/news/2...
