American Astronomical Society (AAS)
@aas.org
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
aas.org
New AAS Journal Author Series Video!
Roger Romani (Stanford University) shares his improved mass measurement of PSR J0952−0607 (2.35 ± 0.11 M⊙), tightening the maximum neutron star mass and strengthening constraints on the dense-matter equation of state. 🔭
youtu.be/eFNqf19QewY
Roger Romani (Stanford University) shares his improved mass measurement of PSR J0952−0607 (2.35 ± 0.11 M⊙), tightening the maximum neutron star mass and strengthening constraints on the dense-matter equation of state. 🔭
youtu.be/eFNqf19QewY
AAS Journal Author Series: Roger Romani on 2026ApJ...996..101R
YouTube video by AAS
youtu.be
February 12, 2026 at 2:22 PM
New AAS Journal Author Series Video!
Roger Romani (Stanford University) shares his improved mass measurement of PSR J0952−0607 (2.35 ± 0.11 M⊙), tightening the maximum neutron star mass and strengthening constraints on the dense-matter equation of state. 🔭
youtu.be/eFNqf19QewY
Roger Romani (Stanford University) shares his improved mass measurement of PSR J0952−0607 (2.35 ± 0.11 M⊙), tightening the maximum neutron star mass and strengthening constraints on the dense-matter equation of state. 🔭
youtu.be/eFNqf19QewY
It’s not too late to participate in Exoplanet Atmospheres 2026!
The deadline is Tuesday, 17 February, to:
👉 Submit a poster abstract
👉 Register today (regular and presenter registration)
👉 Reserve your room
👉 Apply for a Dependent Care Grant
aas.org/meetings/exo... 🔭
The deadline is Tuesday, 17 February, to:
👉 Submit a poster abstract
👉 Register today (regular and presenter registration)
👉 Reserve your room
👉 Apply for a Dependent Care Grant
aas.org/meetings/exo... 🔭
February 11, 2026 at 3:26 PM
It’s not too late to participate in Exoplanet Atmospheres 2026!
The deadline is Tuesday, 17 February, to:
👉 Submit a poster abstract
👉 Register today (regular and presenter registration)
👉 Reserve your room
👉 Apply for a Dependent Care Grant
aas.org/meetings/exo... 🔭
The deadline is Tuesday, 17 February, to:
👉 Submit a poster abstract
👉 Register today (regular and presenter registration)
👉 Reserve your room
👉 Apply for a Dependent Care Grant
aas.org/meetings/exo... 🔭
🎥 New AAS Journals Video!
Denyz Melchor (UCLA) talks about her article on simulations of supermassive black hole binaries, exploring how eccentric Kozai–Lidov oscillations and two-body relaxation shape tidal disruption event rates across black hole mass and cosmic time. 🔭 youtu.be/ldio8MwtZI0
Denyz Melchor (UCLA) talks about her article on simulations of supermassive black hole binaries, exploring how eccentric Kozai–Lidov oscillations and two-body relaxation shape tidal disruption event rates across black hole mass and cosmic time. 🔭 youtu.be/ldio8MwtZI0
AAS Journal Author Series: Denyz Melchor on 2025ApJ...992L..21M
YouTube video by AAS
youtu.be
February 9, 2026 at 5:17 PM
🎥 New AAS Journals Video!
Denyz Melchor (UCLA) talks about her article on simulations of supermassive black hole binaries, exploring how eccentric Kozai–Lidov oscillations and two-body relaxation shape tidal disruption event rates across black hole mass and cosmic time. 🔭 youtu.be/ldio8MwtZI0
Denyz Melchor (UCLA) talks about her article on simulations of supermassive black hole binaries, exploring how eccentric Kozai–Lidov oscillations and two-body relaxation shape tidal disruption event rates across black hole mass and cosmic time. 🔭 youtu.be/ldio8MwtZI0
Are you following the AAS Press Office account? 🔭 If not, give them a follow to stay up to date on astronomy news and press releases!
Stay in the loop 👉 @press.aas.org
Stay in the loop 👉 @press.aas.org
University of California, San Diego: How Big Can a Planet Be? With Very Large Gas Giants, It Can Be Hard to Tell today.ucsd.edu/story/how-bi...
How Big Can a Planet Be? With Very Large Gas Giants, It Can Be Hard to Tell
The largest gas giants in our galaxy blur the line between planets and brown dwarfs. How do these very large gas giants form? UC San Diego researchers used spectral data from the James Webb Space Tele...
today.ucsd.edu
February 9, 2026 at 5:12 PM
Are you following the AAS Press Office account? 🔭 If not, give them a follow to stay up to date on astronomy news and press releases!
Stay in the loop 👉 @press.aas.org
Stay in the loop 👉 @press.aas.org
#AAS248 Call for Proposals Is Open!
▶️ Special Sessions
▶️ Splinter Meetings
▶️ Meetings-in-a-Meeting
▶️ Workshops
▶️ Town Halls
The deadline to submit proposals is Tuesday, 3 March. aas.org/meetings/aas... 🔭
▶️ Special Sessions
▶️ Splinter Meetings
▶️ Meetings-in-a-Meeting
▶️ Workshops
▶️ Town Halls
The deadline to submit proposals is Tuesday, 3 March. aas.org/meetings/aas... 🔭
February 9, 2026 at 3:50 PM
#AAS248 Call for Proposals Is Open!
▶️ Special Sessions
▶️ Splinter Meetings
▶️ Meetings-in-a-Meeting
▶️ Workshops
▶️ Town Halls
The deadline to submit proposals is Tuesday, 3 March. aas.org/meetings/aas... 🔭
▶️ Special Sessions
▶️ Splinter Meetings
▶️ Meetings-in-a-Meeting
▶️ Workshops
▶️ Town Halls
The deadline to submit proposals is Tuesday, 3 March. aas.org/meetings/aas... 🔭
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...
🔭
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...
🔭
February 4, 2026 at 4:26 PM
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...
🔭
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
@aip.bsky.social
Alice Shapley Wins 2026 Dannie Heineman Prize for Astrophysics - AIP.ORG
University of California professor honored for pioneering research into early galaxy formation.
www.aip.org
February 4, 2026 at 3:45 PM
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
@aip.bsky.social
Reposted by American Astronomical Society (AAS)
NASA's Goddard Space Flight Center: Hubble Sees Galaxy with Dark Rings in New Light science.nasa.gov/missions/hub...
Hubble Sees Galaxy with Dark Rings in New Light - NASA Science
This Hubble image is of NGC 7722, a striking galaxy with an uncommon appearance located about 187 million light-years away.
science.nasa.gov
February 3, 2026 at 9:42 PM
NASA's Goddard Space Flight Center: Hubble Sees Galaxy with Dark Rings in New Light science.nasa.gov/missions/hub...
🎥 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
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
AAS Journal Author Series: Ed Young on 2025PSJ.....6..251Y
YouTube video by AAS
youtu.be
February 2, 2026 at 7:10 PM
🎥 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
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
Reposted by American Astronomical Society (AAS)
NASA’s Jet Propulsion Laboratory: Perseverance Rover Completes First AI-Planned Drive on Mars www.jpl.nasa.gov/news/nasas-p...
NASA’s Perseverance Rover Completes First AI-Planned Drive on Mars
The team for the six-wheeled scientist used a vision-capable AI to create a safe route over the Red Planet’s surface without the input of human route planners.
www.jpl.nasa.gov
February 2, 2026 at 4:15 PM
NASA’s Jet Propulsion Laboratory: Perseverance Rover Completes First AI-Planned Drive on Mars www.jpl.nasa.gov/news/nasas-p...
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
January 30, 2026 at 11:26 PM
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 🔭
This series connects authors with their article, their human story, and the larger #astronomy community. youtu.be/pwhW8q8xGX8 🔭
AAS Journal Author Series: Ben Cassese on 2025PSJ.....6..252C
YouTube video by AAS
youtu.be
January 30, 2026 at 3:50 PM
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 🔭
This series connects authors with their article, their human story, and the larger #astronomy community. youtu.be/pwhW8q8xGX8 🔭
Reposted by American Astronomical Society (AAS)
AAPT is partnering with the American Astronomical Society, and several AAPT members are joining the AAS for advocacy training and Hill visits to communicate the critical importance of science and education programs to Congress. Apply by 11:59 pm ET on February 1. ow.ly/mb4x50XKV87 @aas.org
January 30, 2026 at 3:02 PM
AAPT is partnering with the American Astronomical Society, and several AAPT members are joining the AAS for advocacy training and Hill visits to communicate the critical importance of science and education programs to Congress. Apply by 11:59 pm ET on February 1. ow.ly/mb4x50XKV87 @aas.org
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... 🔭
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... 🔭
January 30, 2026 at 3:14 PM
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... 🔭
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... 🔭
Reposted by American Astronomical Society (AAS)
University of Calgary: Mapping the Magnetic Field of the Milky Way www.ucalgary.ca/news/mapping...
Mapping the magnetic field of the Milky Way
Two new studies reveal structural complexity in the galaxy
www.ucalgary.ca
January 29, 2026 at 6:22 PM
University of Calgary: Mapping the Magnetic Field of the Milky Way www.ucalgary.ca/news/mapping...
☄️ 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 🔭
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 🔭
AAS Journal Author Series: Ariel Graykowski on 2025PSJ.....6..224G
YouTube video by AAS
youtu.be
January 28, 2026 at 3:33 PM
☄️ 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 🔭
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...
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...
January 28, 2026 at 2:59 PM
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...
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...
Reposted by American Astronomical Society (AAS)
European Space Agency/Hubble: Researchers Discover Hundreds of Cosmic Anomalies with Help from AI esahubble.org/news/heic260...
Researchers discover hundreds of cosmic anomalies with help from AI
A team of astronomers have used a new AI-assisted method to search for rare astronomical objects in the Hubble Legacy Archive. The team sifted through nearly 100 million image cutouts in just two and ...
esahubble.org
January 27, 2026 at 5:39 PM
European Space Agency/Hubble: Researchers Discover Hundreds of Cosmic Anomalies with Help from AI esahubble.org/news/heic260...
✨ 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...
👉 Register today: aas.org/meetings/exo...
January 26, 2026 at 5:54 PM
✨ 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...
👉 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.
www.youtube.com/watch?v=F30v...
This series connects authors with their research, their human stories, and the larger #astronomy community.
AAS Journal Author Series: Evgenij Zubko on 2025RNAAS...9..257Z
YouTube video by AAS
www.youtube.com
January 26, 2026 at 5:42 PM
🔭 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.
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... 🔭
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... 🔭
January 26, 2026 at 5:36 PM
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... 🔭
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... 🔭
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... 🔭
January 26, 2026 at 2:17 PM
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... 🔭
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... 🔭
Reposted by American Astronomical Society (AAS)
Kasper Zoellner reports for @astrobites.bsky.social on whether the low-density planets that keep popping up in our growing collection of exoplanets are really the water worlds that we imagine them to be. aasnova.org/2026/01/20/a... 🔭
Are Water Worlds Just Made of Soot?
Astrobites reports on whether the low-density planets that keep popping up in our growing collection of exoplanets are really the water worlds that we imagine them to be.
aasnova.org
January 20, 2026 at 5:11 PM
Kasper Zoellner reports for @astrobites.bsky.social on whether the low-density planets that keep popping up in our growing collection of exoplanets are really the water worlds that we imagine them to be. aasnova.org/2026/01/20/a... 🔭
🔭 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...
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...
AAS Journal Author Series: Thibault Lechien on 2025ApJ...990L..51L
YouTube video by AAS
youtube.com
January 20, 2026 at 1:28 PM
🔭 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...
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...
Reposted by American Astronomical Society (AAS)
Congratulations to UC San Diego astronomy professor Adam Burgasser on being named a fellow of American Astronomical Society (AAS). Adam was recognized for his work on understanding the nature of brown dwarfs and for his extensive leadership roles in the astronomy community. https://bit.ly/3NmCjDy
January 19, 2026 at 3:01 PM
Congratulations to UC San Diego astronomy professor Adam Burgasser on being named a fellow of American Astronomical Society (AAS). Adam was recognized for his work on understanding the nature of brown dwarfs and for his extensive leadership roles in the astronomy community. https://bit.ly/3NmCjDy