Baku, September 17, AZERTAC An official signing ceremony of the Contract for Hosting the 74th International Astronautical Congress in Baku, Azerbaijan in 2023 has been held at the Heydar Aliyev Center, Baku.The document was signed by Chairman of the Board of Azercosmos OJSC Samaddin Asadov and President of the International Astronautical Federation Pascale Ehrenfreund.