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29.SEP — 03.OCT.2025

SUSTAINABLE SPACE : RESILIENT EARTH

IAC 2025 association logos

Organized by

International Astronautical Federation (IAF)

IAF Logo

Founded in 1951, the International Astronautical Federation (IAF) is the world’s leading space advocacy body with more than 563 members in 81 countries, including all leading space agencies, industries, research institutions, universities, societies, associations, institutes and museums worldwide.

Following its motto “Connecting @ll Space People” and its vision of “A space-faring world cooperating for the benefit of humanity”, the Federation advances knowledge about space, supporting the development and application of space assets by promoting global cooperation.

As organizer of the annual International Astronautical Congress (IAC) – world’s premier global space event – and other thematic events, the IAF actively encourages the development of space activities for peaceful purposes and supports the dissemination of scientific and technical information related to space.

iafastro.org

Key dates

REGISTRATION

Early bird closes

30 JUN 2025
EXTENDED
1 JUL 2025

Standard commences /
Standard closes

2 JUL 2025 /
29 AUG 2025

Late open /
Closes

30 AUG 2025 /
SOLD OUT

PROGRAM

IAC 2025 ABSTRACT SELECTION NOTIFICATION

MAY 2025

Confirmation of acceptance

6 JUN 2025

Webinar on how to ace your iac presentation

JUN 2025

Final day to register

5 SEP 2025

Paper submission

12 SEP 2025

IAC 2025 IN SYDNEY, AUSTRALIA

29 SEP - 03 OCT 2025

Related

Notice

Dear website visitor,

We hope your preparations for the upcoming Congress are going well.

We would like to make you aware of a recent issue concerning fraudulent emails offering to sell delegate or attendee lists for our event. These messages are not legitimate and are in no way affiliated with the Congress or its organizers.

Please note that the Congress will not be providing or selling a delegate list, and we strongly encourage you to disregard any unsolicited emails making such offers. These emails are typically sent by unauthorized third parties and are considered spam.

If you have received one of these emails, we recommend that you:

  • Do not respond or engage with the sender.
  • Do not click on any links or download any attachments.
  • Report the email as spam, if possible.

The privacy and security of our attendees and partners are a top priority, and we are taking all appropriate measures to address this matter.

Should you have any questions or concerns, please don’t hesitate to reach out to our team directly.

Thank you for your continued support, and we look forward to welcoming you to the Congress.

Warm regards,
IAC 2025 Congress Managers
https://www.iac2025.org/contact/