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New images from NASA's James Webb Space Telescope are providing a clearer look at a mysterious and rarely studied nebula surrounding a dying star. The observations reveal new details about the structure of this unusual cloud of gas and dust and how it is changing over time.
Called Nebula PMR 1, the object has a striking appearance that resembles a brain inside a transparent skull, which is why it has been nicknamed the "Exposed Cranium" nebula. Webb observed i...

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