Beautiful from far away, terrifying from up close. Supernovae are the most powerful explosions in the universe, unleashing enough energy to outshine galaxies. It's not a regular explosion that happens and ends quickly. Metaphorically speaking, a supernova is like a volcanic eruption followed by a tsunami. At first, there is a colorful ball of hot, expanding gas, creating a spectacular cloud that will shine for about a month – but then it doesn’t stop. Hot and dangerous gas rushes outward at spee