
The 76th International Astronautical Congress (IAC), the International Astronautical Federation (IAF)’s premier global space event, will be held in Sydney, Australia from 29 September to 3 October 2025.
Often described as the ‘Olympics of space,’ this prestigious event is where the world’s space community gathers to access the latest space advancements and trends, academic works, industry connections, and partnership opportunities.
The theme for 2025 will be ‘Sustainable Space: Resilient Earth,’ setting the stage for important discussions such as: space-based applications for Earth, sustainable space activities, and sustaining life off Earth.

The Positioning, Navigation and Timing 2026 (PNT2026) conference will be held at Sydney’s Royal Randwick Racecourse from 4 to 6 February next year.
Formerly known as the IGNSS Conference, PNT2026 will bring together local and global experts from industry, government, defence and academia to showcase and discuss the latest advancements in GNSS and alternative PNT technologies.
Key industry challenges will be on the agenda, as will applications across the aerospace, defence, smart city, autonomous systems and critical infrastructure sectors, and others.
This will be the first event of its kind since the International GNSS Association (IGNSS) merged with the Australian Institute of Navigation.