ابرنواختر (supernova) is a powerful and luminous explosion that occurs at the end of a star's life cycle. This event can outshine entire galaxies for a short period and is crucial for dispersing elements into space, contributing to the formation of new stars and planets. There are two main types of ابرنواختر: Type I, which occurs in binary star systems, and Type II, which happens when massive stars exhaust their nuclear fuel. The remnants of a supernova can form neutron stars or black holes, depending on the mass of the original star.