International Astronomy Day is celebrated on April 25, providing an opportunity for astronomy enthusiasts and the general public to explore the wonders of space. Activities often include visiting museums or planetariums, charting stars, and identifying constellations. Participants are encouraged to set aside everyday life to gaze at the night sky and engage in educational activities, such as learning about ancient navigation techniques using stars or creating sun clocks. The day emphasizes the importance of astronomy in understanding both the universe and its influence on culture, including the naming of planets after Greek and Roman gods. International Astronomy Day is celebrated twice a year, with a spring and a fall event, allowing for exploration of changing constellations and celestial phenomena throughout the year.