
The Cat's Eye Nebula is one of the most intricate planetary nebulae ever seen — the glowing, shell-shedding death throes of a Sun-like star, captured by Hubble in dazzling detail. Its hypnotic onion-like rings, high-speed gas jets, and knotted filaments made it a Hubble icon and a textbook glimpse of what our own Sun may look like in about five billion years.