Host country Australia ranks second in the number of abstracts selected for the upcoming International Astronautical Congress (IAC).
It stars alongside the United States (US), China, Italy and Germany with the second-highest number of space research abstracts and their authors chosen to feature at the event.
The 76th edition of the Congress will be held in Sydney from 29 September to 3 October 2025 with thousands of delegates from up to 120 nations expected.
This prestigious event brings together the world's space community to access the latest advancements and trends, academic works, industry connections and partnership opportunities.
The world's largest space event will be hosted by the Space Industry Association of Australia (SIAA) and co-hosted by the NSW Government and the Australian Space Agency.

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IAC 2025 will delve into why space is critical for both businesses and our everyday lives.
An unprecedented academic feat for Australia
The abstract submissions were invited from academia, government, national space agencies, corporations, tech entrepreneurs, students and innovators across the world.
This month, the Congress’s International Programme Committee announced that it has accepted almost 4,100 abstracts for IAC 2025 with Australia recording over 400 of the space research selections.
From technical deep dives on space technologies to social, cultural and environmental implications for ‘Sustainable Space: Resilient Earth’ — IAC 2025's theme — the range of Australian studies selected reflects the diversity of the country’s space ecosystem.
The chosen research topics cover world-class studies in quantum physics, optical communication, and cybersecurity as well as advancements in Extravehicular Activity on Mars and the Moon.
The list of Australian research to be showcased at IAC 2025 also investigates:
- medical and ethical challenges of sustaining health in spaceflight
- agricultural strategies for sustainable food resources
- managing the psychology of isolation
- climatology
- human rights and intellectual property law in space.
Lisa Vitaris, Director of SIAA, says it’s unprecedented for Australia to feature so strongly at such an internationally diverse and respected space event as IAC on the merit of its ideas and accomplishments.
“The Indo-Pacific is strategically attractive to our global peers. Such strong representation from Australia speaks to our growing sophistication, influence and ambition as a space nation.
It’s a privilege for SIAA to host this historic Congress featuring Australia’s best thinkers, innovators and achievers. We’re truly shaping the future of sustainable space exploration and resilient Earth solutions in collaboration with worldwide peers and industry innovators,” shares Ms. Vitaris.

See you in Sydney
Showcasing Australia and the Indo-Pacific space sectors to the universe.