Follow the closing ceremony of the 76th International Astronautical Congress (IAC) held in Sydney, Australia from 29 September to 3 October 2025. IAC 2025 was hosted by Space Industry Association of Australia (SIAA) and co-hosted by Australian Space Agency and NSW Government. The theme of IAC Sydney 2025 was “Sustainable Space: Resilient Earth” which set the stage for important discussions such as: space-based application for earth; sustainable space activities; and sustaining life off earth. Key focus areas included showcasing the Asia Pacific region, inspiring and engaging the next generation’s space workforce, engaging a broad range of industries, and educating the community about ‘why space matters’ through the IAC’s open day.

The ceremony was hosted by Christian Feichtinger, IAC with the following speakers: Gabriella Arrigo, Asi; Asanda Ntisana, South African Space Agency and Jeremy Hallett, Space Industry Association of Australia.

All IAC 2025 videos.