👉 Fractonimbus is a concept in astronomy that refers to the appearance of a large cloud of light or gas, often associated with storms. This type of cloud formation can occur when there is an increase in temperature and pressure due to solar activity. Fractal clouds are thought to be related to the cosmic rays that are emitted by stars during their nuclear fusion process. The term "fractonimbus" is derived from the Greek words "fracto-" (which means "split", "div