Trends on Instagram: "This massive burst is called the Yonshakudama, the largest firework in Japan. It measures about 120 cm (4 feet) wide and is launched during the Katakai Fireworks Festival in Niigata. When it explodes, it fills the sky with a single, overwhelming bloom of light, lasting several seconds instead of a quick flash. The precision, scale, and craftsmanship behind it are why the festival is considered one of the most impressive fireworks events in the world. In Japan, fireworks are