The mysterious Cat’s Eye Nebula finally explained

Nothing passes gas like a dying star.

When a star about the size of the sun nears the end of its life, it sheds its outer layer of gas in a bright and beautiful bubble known as a planetary nebula. At the center of each bubble, a faint star continues to radiate its surroundings, sculpting the gas into colorful shapes that astronomers have likened to crabs, reptiles and scary screaming faces.

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