International Astronomical Union (IAU)

Founded in 1919, the International Astronomical Union (IAU) promotes and safeguards the science of astronomy through international cooperation.

[International Astronomical Union (IAU) @IAU_org]

Join us for the latest IAU Early career Astronomer (ECA) Online Discourse Series! ⭐️ This edition celebrates the creation of the African Network of Women in Astronomy (AfNWA) for more inclusion and diversity ! 🪐🌏 More information below ⇩⇩

[International Astronomical Union (IAU) @IAU_org]

The Agenda for the 7th Middle East and Africa Regional IAU Meeting in Jordan has arrived! 🚀 Check out all the relevant information and program below 👇

[International Astronomical Union (IAU) @IAU_org]

The 7th Middle East and Africa Regional IAU Meeting (MEARIM7) will be held from 11–13 November 2025 at The University of Jordan, Amman, Jordan.

The deadline for abstract submission has been extended to September 1, 2025.

Learn more:
https://t.co/OjS4eGo8aE

[International Astronomical Union (IAU) @IAU_org]

The IAU Symposium #IAUS404 on 'Advancing the Search for Technosignatures' will be held online from March 2 to 6, 2026.

**Important Dates**
Abstract deadline: 17 October 2025
Registration opens: 1 December 2025

https://t.co/0D78WwFrZT
#IAUS404

[International Astronomical Union (IAU) @IAU_org]

The 7th Shaw-IAU Workshop on Astronomy for Education, organised by the IAU Office of Astronomy for Education, will take place from 18 to 21 November 2025.

https://t.co/lOK1k1mgRr

[International Astronomical Union (IAU) @IAU_org]

The Asia Pacific Regional International Astronomical Union (IAU) Meeting will take place from May 4 to 8, 2026, at the Hong Kong Convention Centre.

Read the 1st Circular here:
https://t.co/HRDZU1k15q

[International Astronomical Union (IAU) @IAU_org]

The 7th Middle East and Africa Regional IAU Meeting (MEARIM7) will be held from 11–13 November 2025 at The University of Jordan, Amman, Jordan.

The deadline for abstract submission has been extended to September 1, 2025.

Learn more:
https://t.co/OjS4eGo8aE

[International Astronomical Union (IAU) @IAU_org]

The IAU Symposium #IAUS402 on 'Massive Stars Across Redshifts in the Era of JWST and Large Surveys' will be held from September 15 to 19, 2025, in Ensenada B.C., Mexico.

https://t.co/JxDhgmWqkT
#IAUS402

[International Astronomical Union (IAU) @IAU_org]

The 7th Middle East and Africa Regional IAU Meeting (MEARIM7) will be held from 11–13 November 2025 at The University of Jordan, Amman, Jordan.

The deadline for abstract submission has been extended to September 1, 2025.

Learn more:
https://t.co/OjS4eGo8aE

[International Astronomical Union (IAU) @IAU_org]

The latest edition of the IAU Working Group Bulletin on Small Bodies Nomenclature (Volume 5, #18) has been released.
The PDF can be found here: https://t.co/L2bE4ElLHT

[International Astronomical Union (IAU) @IAU_org]

We are pleased to invite the IAU community to submit nominations for the 2026 Kavli Prize in Astrophysics, a $1 million prize for basic research breakthroughs that have fundamentally transformed our field. Visit https://t.co/dzWwkhNAmP to learn more.

[International Astronomical Union (IAU) @IAU_org]

The IAU seeks a full-time Administrative Assistant and Data Manager, joining the Head of Administration (HoA) in a very small team in the Secretariat at IAU Headquarters in Paris.

https://t.co/9r9jmSWpyc

[International Astronomical Union (IAU) @IAU_org]

Starting today and until August 9, the IAU Symposium #IAUS401 on 'Advancing Reference Systems, Ephemeris, and Standards: From the Earth and the Moon to Solar System Bodies ' will be held in La Plata, Argentina.

https://t.co/j90tsxbQxB
#IAUS401

[International Astronomical Union (IAU) @IAU_org]

The June edition of 'Badjáneaddji Násti', the new International School for Young Astronomers (ISYA) Newsletter, is now online:
https://t.co/l0kxvkaNCH

Don't forget to subscribe at
https://t.co/6Hu75919kL

[International Astronomical Union (IAU) @IAU_org]

The latest edition of the IAU Working Group Bulletin on Small Bodies Nomenclature (Volume 5, #17) has been released.
The PDF can be found here: https://t.co/L2bE4ElLHT

[International Astronomical Union (IAU) @IAU_org]

Join the 7th Middle East and Africa Regional IAU Meeting (MEARIM7), which will be held from 11–13 November 2025 at The University of Jordan, Amman, Jordan.

The deadline for abstract submission has been extended to September 1, 2025.

Learn more:
https://t.co/OjS4eGo8aE

[International Astronomical Union (IAU) @IAU_org]

The IAU Symposium #IAUS401 on 'Advancing Reference Systems, Ephemeris, and Standards: From the Earth and the Moon to Solar System Bodies ' will be held from August 4 to 9, 2025, in La Plata, Argentina.

https://t.co/j90tsxbQxB
#IAUS401

[International Astronomical Union (IAU) @IAU_org]

The IAU seeks a full-time Administrative Assistant and Data Manager, joining the Head of Administration (HoA) in a very small team in the Secretariat at IAU Headquarters in Paris.

https://t.co/9r9jmSWpyc

[International Astronomical Union (IAU) @IAU_org]

The IAU scientific Symposia programme for 2026 has been announced.

https://t.co/hTwqEc6Ytz

[International Astronomical Union (IAU) @IAU_org]

The IAU seeks a full-time Administrative Assistant and Data Manager, joining the Head of Administration (HoA) in a very small team in the Secretariat at IAU Headquarters in Paris.

https://t.co/9r9jmSWpyc