Supernova Cosmology

Supernova cosmology is the study of how exploding stars, known as supernovae, can be used to understand the universe's expansion. When certain types of stars run out of fuel, they explode brilliantly, making them visible across vast distances. By observing the brightness and redshift of these supernovae, astronomers can determine how fast the universe is expanding. This research has led to the discovery of dark energy, a mysterious force driving the acceleration of this expansion. In essence, supernovae serve as cosmic beacons, helping us uncover the fundamental nature and fate of the universe.