Supernovae are powerful and luminous explosions that occur at the end of a star's life cycle. These events can outshine entire galaxies for a short period and are crucial for the distribution of elements throughout the universe. When a massive star exhausts its nuclear fuel, it can no longer support itself against gravitational collapse, leading to a spectacular explosion.
There are two main types of supernovae: Type I, which occurs in binary systems, and Type II, which results from the collapse of massive stars. The remnants of these explosions can form neutron stars or black holes, while the expelled material enriches the interstellar medium with heavy elements, contributing to the formation of new stars and planets.