The International Astronautical Congress (IAC) 2025 is the world’s premier space event, bringing together global space leaders, industry experts, researchers, and enthusiasts for five days of knowledge-sharing, innovation, and networking.
From cutting-edge presentations to interactive exhibitions, IAC 2025 Sydney offers an unparalleled opportunity to explore the future of space.
This year’s event will be hosted at ICC Sydney, featuring IAC 2025 Space Day powered by LEGO® Play on Friday, 3 October — a free public celebration of space exploration with hands-on activities, live demonstrations, and inspiring talks.