Hi, your question is unclear. However, I provided brief information about a supernova.
Step-by-step explanation:
A supernova is an expression used to refer to the death of a star. In other words, it is a phenomenom where the elements found in a star becomes so hot that it results in a massve explosion which destroys the star.
After the explosion, mass amount of energy is released which forms other elements which are released into space.