supernova

A supernova is a powerful explosion that occurs at the end of a star's life cycle. When a star runs out of fuel, it can no longer support itself against gravity, leading to a collapse. This collapse causes a rapid increase in temperature and pressure, resulting in a catastrophic explosion that outshines entire galaxies for a brief period. Supernovae are crucial to the universe, as they spread heavy elements created within the star into space, contributing to the formation of new stars and planets. They also play a key role in understanding cosmic distances and the expansion of the universe.