Supernova

A supernova is a powerful and luminous explosion that occurs at the end of a star’s life cycle. This event marks the transition of a star, usually more massive than the Sun, into a compact remnant such as a neutron star or black hole. Supernovae are significant astronomical events, as they can outshine entire galaxies for a short period and release enormous amounts of energy, often outshining other stars in their vicinity.

There are two primary types of supernovae: Type I supernovae, which result from the thermonuclear explosion of a white dwarf star that has accumulated enough material from a companion star, and Type II supernovae, which occur when a massive star exhausts its nuclear fuel and undergoes gravitational collapse.

The explosion disperses heavy elements into space, contributing to the formation of new stars and planets and influencing the chemical composition of the universe. Supernovae are important for understanding the evolution of stars, the dynamics of galaxies, and can also serve as distance indicators for measuring the expansion of the universe.