This next one is named the Cat's Eye. The above nebula is seen at an angle, whereas the one below is seen dead on. The circular shock waves spreading out from the center leaves ring after ring after ring. The bright white spot in the center is what is left of the star; a cinder, so to speak:
Go back and look again at that last picture of the Red Rectangle. Now explain how it could produce this shape. Yes, I would love to hear how you think it came about and what you think of the other nebulae above. Now, keep looking upwards, and have a great day, you hear?