What is a supernova?

A star that implodes

A supernova is an astronomical event that occurs when a massive star reaches the end of its life and explodes. This explosion releases a phenomenal amount of energy, making the supernova shine brightly in the sky, often brighter than an entire galaxy. Supernovas are crucial for the universe as they scatter heavy chemical elements, essential for the formation of new stars, planets, and life itself. Observing a supernova provides scientists with valuable clues about the formation of the universe and life.