👉 Spherules are a type of solid matter that forms in the core of a star, where it is heated to temperatures approaching 10 million degrees Celsius. Spherules can be categorized into two main types: radiating and non-radiating. Radiating spherules emit light or heat as they cool down from their initial state. They are typically found at the edges of stars in the vicinity of the star's center, where a dense layer of gas is being heated by nuclear reactions