👉 Atremata is a term used in the scientific field of astrophysics to describe a type of star that is very hot and dense, with a temperature exceeding 10 million degrees Celsius. Atremata are also known as supermassive black holes or black holes with mass comparable to the sun. They are believed to be the source of much of the mass in the universe, with at least one being thought to have formed after the death of another star.