ann23028 — Announcement

Group photo of participants in the XXXI IAU General Assembly
1 September 2023
Call for Applications to Host the IAU General Assembly in 2030

The IAU invites its National Members to submit Letters of Intent to host the IAU XXXIV General Assembly in 2030 (GA2030). This key triennial IAU event takes place over 10–12 days, offering a rich scientific programme and facilitating meetings and new collaborations between astronomers. The deadline to submit Letters of Intent is 1 November 2023.

The GA2030 programme will include 6 Symposia and 12 Focus Meetings selected by the IAU Executive Committee. There will also be Invited Discourses by distinguished scientists, scientific meetings organised by the 9 IAU Divisions, meetings organised by each of the 4 IAU Offices and the Executive Committee Working Groups, IAU administrative sessions, public lectures, and a social and network-oriented programme.

Hosting an IAU General Assembly is an exciting prospect for any member state and its local astronomy community and region, bringing together a few thousand visiting astronomers from across the world to share their latest research. The IAU strives to offer this opportunity to as many countries around the world as possible. Therefore, please note that countries that have hosted GAs within the last 15 years (i.e. countries that have hosted one of the last five GAs) are unlikely to be selected to host GA2030.

Important Dates:

  • 1 November 2023: Deadline for brief Letters of Intent to host GA2030. These should be submitted to the General Secretary ( and; 
  • 1 December 2023: Deadline for the information requested from all proposers, see Additional Questions in the GA Hosting Rules & Guidelines. This should also be submitted to the General Secretary; 
  • 15 December 2023: A shortlist of four proposers will be compiled, and an invitation for full proposals will be sent out;
  • 1 April 2024: Bid Books are due.

Further details are available in the GA Hosting Rules & Guidelines.

More information

The IAU is the international astronomical organisation that brings together more than 12 000 active professional astronomers from more than 100 countries worldwide. Its mission is to promote and safeguard astronomy in all its aspects, including research, communication, education and development, through international cooperation. The IAU also serves as the internationally recognised authority for assigning designations to celestial bodies and the surface features on them. Founded in 1919, the IAU is the world's largest professional body for astronomers.



José Miguel Rodriguez Espinosa
IAU General Secretary

Debra Elmegreen
IAU President

Lina Canas
IAU Membership Coordinator

Lars Lindberg Christensen
IAU Director of Communications
Cell: +1 520 461 0433/+49 173 38 72 621

About the Announcement



Group photo of participants in the XXXI IAU General Assembly