in March, the world celebrates the International Day of Planetariums. It celebrates the importance of planetariums as an educational tool that allows us to appreciate the grandeur and beauty of the Universe. The event's main goals are to inform the public about the significant role that planetariums play in culture, science, and education, and make people understand that astronomy is an enjoyable and enthralling activity. Another important goal of the International Day of Planetariums is encouraging international collaborations between planetariums of different countries. The Italian Association of Planetaria was the first to organize this Day.