78th International Astronautical Congress (IAC 2027)

Expects ~10,000 participants for event themed One Space. Shared Future. Co-events include Space Generation Congress, September 23-25; UN / IAF Workshop, September 24-26; IAA Academy Day and International Meeting for Ministers & Members of Parliaments, both September 26; IAF General Assembly and Bureau Meeting, both October 1.

Poland hosts the event for the first time in 60+ years.