On the night of September 2, 2025, reports of clouds sparkling in the sky above Mount Atago and other mountains as seen from Kyoto City were posted on social media one after another. At the time, there was no thunder in Kyoto City, and no fireworks displays were taking place. What exactly was glowing?
Articles are excerpts from reports and news in the Kyoto Shimbun. Due to automatic translation, some expressions may not be accurate.