La première édition du Congrès s’est déroulée en 1985 à Cernay en France.
Puis il a fait le tour du monde :
II Congress Budapest, Hungary 1986 / III Congress Mexico City, Mexico 1987 / IV Congress Sofia, Bulgaria 1988 / V Congress Riyadh, Saudi Arabia 1989 / VI Congress Groningen, The Netherlands 1990 / VII Congress Berlin, Germany1991 / VIII Congress Washington, DC 1992 / IX Congress Vienna, Austria 1993 / X Congress Moscow, Russia 1994 / XI Congress Warsaw, Poland 1995 / XII Congress Montreal, Canada 1996 / XIII Congress San Jose, Costa Rica 1997 / XIV Congress Brussels, Belgium 1998 / XV Congress Bucharest, Romania 1999 / XVI Congress Madrid, Spain 2000 / XVII Congress Almaty, Kazakhstan 2001 / XVIII Congress Tokyo Japan 2003 / XIX Congress Salt Lake City, U.S.A 2005 / XX Congress Edinburgh, Scotland 2007 / XXI Congress Seattle, Washington, USA 2008 / XXII Congress Prague, Czech Republic 2009 / XXIII Congress Kuala Lumpur, Malaysia 2010 / XXIV Congress Moscow, Russia 2011 / XXV Congress Riyadh, Saudi Arabia 2012 / XXVI Congress Cologne, Germany 2013 / XXVII Congress Beijing, China 2014 / XXVIII Congress Stockholm, Sweden 2015 / XXIX Congress Vienna, Austria October 3-7, 2016 / XXX Congress Toulouse, France October 16-20, 2017
30 ans après, il revient en France, à Toulouse, à la Cité de l’espace.