@aas.org
The mission of the American Astronomical Society is to enhance and share humanityβs scientific understanding of the universe as a diverse and inclusive astronomical community.
@aas.org#AAS249 AAS offers support for meeting attendees with family care needs.
Dependent Care Grants: Apply for subsidized dependent care, whether on-site or back home. Deadline: 2 Nov
On-Site Childcare: Run by KiddieCorp, experts with 41 years running programs at conventions. aas.org/meetings/aas... π
@aas.orgπ₯ New AAS Journal Author Series! Rimpei Chiba (U. Tokyo/U. Toronto) shows that the "tree-ring" structure in the Milky Way bar's resonance survives spiral arms, Sagittarius encounters & noise, a robust signal of bar spin-down and a dark matter halo. www.youtube.com/watch?v=dnuz... π
@aas.orgAAS member Francis Halzen has been named the recipient of the Nobel Prize in Physics 2026 "for decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin." aas.org/press/aas-me... π
@aas.orgπ The American Physical Society and the AAS are pleased to welcome Jeff Feng as a Civic Science Fellow this fall. This fellowship will focus on strengthening public engagement across the physical sciences. aas.org/posts/news/2...
@aas.orgDon't miss your chance to be part of #AAS249.
TODAY is the deadline to submit an abstract for the 249th AAS meeting. If you'd like to present β via a talk or a poster β your abstract must be submitted by the end of today, 5 October, at 11:59 pm ET. aas.org/meetings/aas... π
@aas.orgπ₯ New AAS Journal Author Series! GΓΆkhan YΓΌcel (Akdeniz Univ) on ET Cru: spectral disentangling pins down masses to ~1.3% and reveals extreme carbon depletion and nitrogen enrichment in the donor, direct evidence of CNO-cycle exposure. www.youtube.com/watch?v=b_-n... π
@publishing.aas.org
@aas.org#AAS249 Your research, center stage in Salt Lake City.
Planning to submit an iPoster for the 249th AAS meeting in Salt Lake City? The abstract deadline has been extended to 5 October.
Students entering the Chambliss competition, your abstract is due by the same deadline. aas.org/meetings/aas... π
@aas.orgWhen Science Policy Reaches the Classroom
Matt Guthrie, a participant in the Fall 2026 AAS and American Association of Physics Teachers Congressional Visits Day, reflects on his experience engaging in advocacy. aas.org/posts/news/2... π
@policy.aas.org
@aas.orgWhat happens when stars don't act like the Sun? π In our latest #AASJournals Author Series, Joel Ong (ηε ε) explains new "structure inversion" techniques using natural stellar coordinates instead of physical radius β solving key asteroseismology problems. youtu.be/SaNJWscwvzE π
@publishing.aas.org
@aas.orgπ #AAS249 Meet plenary speaker Mary Anne Limbach (U of Michigan) β research focuses on discovering & characterizing planetary systems in unexplored regimes, including cold giant planets, planets around white dwarfs, exomoons & exorings.
Join us in Salt Lake! aas.org/meetings/aas249/registration
@aas.orgπ Deadline Extended! Applications for the Harlow Shapley Visiting Lectures Program are now welcome through Friday, 2 October. We are seeking astronomers and host institutions to participate in 2027. aas.org/posts/news/2...
@aas.orgπ #AAS249 Planning to submit an iPoster for the 249th AAS meeting in Salt Lake City? Good news: the abstract deadline has been extended to 5 October! AAS member @drgamble21.bsky.social walks you through it step by step in this short tutorial: www.youtube.com/watch?v=PlGv...
@aas.orgIAU General Assembly 2027: Deadlines and Event Highlights
The 33rd International Astronomical Union (IAU) General Assembly will be held 10β19 August 2027 in Rome, Italy. Abstract submissions and grant applications are due 15 January 2027. aas.org/posts/news/2... π
@aas.org#AAS249 The AAS invites organizations to participate in the Grad Student/REU Fair at the 249th AAS meeting in Salt Lake City, Utah.
π
Sunday, 10 January 2027
π 5:30β7:00 pm MT
Last yearβs event SOLD OUT before the deadline! Reserve your space by 11 December. aas.org/meetings/aas... π
@aas.orgNew #AASJournals Author Series video! π
Sabrina Appel (AMNH/Rutgers) discusses Torch, a framework combining FLASH + AMUSE to simulate star cluster formation. Her work adds protostellar jet feedback & shows jets slow star formation, even in massive clouds. Watch: www.youtube.com/watch?v=1GM2...
@aas.orgThis could be you in Salt Lake City.
#AAS249 Abstract deadline is 30 Sep by 11:59 pm ET. When you submit your abstract, you'll be asked to choose between an iPoster or a paper poster.
Students entering the Chambliss competition, your abstract is due by the same deadline. aas.org/meetings/aas... π
@aas.orgπ #AAS249 Plenary Speaker: Yao-Yuan Mao (θ θε )
Assistant Professor at Univ of Utah, Mao studies low-mass galaxies β developing new observational methods to find these faint systems and using them to probe galaxy evolution & the nature of dark matter.
Early reg closes 12 Oct: aas.org/meetings/aas...
@aas.orgπ New AAS Journal Author Series video! NatalΓ de Santi (UC Berkeley/LBNL/Flatiron) discusses training a graph neural network on just galaxy 3D positions + velocities to estimate Ξ©β with ~10% precision β and how it generalizes across totally different simulations.
π youtu.be/I_ouavsYGeA
@aas.orgAAS and AAPT members were on Capitol Hill earlier this week advocating for robust federal support for the sciences and STEM education. Amplify their efforts by writing or calling your members of Congress today. aas.org/reject-2027-... π
@aas.orgJWST UNCOVER Collaboration to Receive 2027 Berkeley Prize
The JWST UNCOVER collaboration will receive the 2027 Lancelot M. Berkeley β New York Community Trust Prize for Meritorious Work in Astronomy for its work revealing the contents of the distant universe. aas.org/press/jwst-u... π
