Comet ISON disintegrated as it approached the Sun on November 28, 2013. The comet was first observed in September 2012 and was initially thought to be a potential "Great Comet" that could become visible to the naked eye. However, as it approached the Sun, ISON began to show signs of fragmentation and eventually broke into several smaller pieces. These pieces continued to disintegrate until they were completely destroyed by the Sun's heat. The destruction of ISON was a disappointment to many astronomers and skywatchers, but it also provided valuable insights into the behavior of comets and their interactions with the Sun.