The Egg Nebula offers astronomers a special look at the normally invisible dust shells swaddling an aging star in this image released Saturday, April 5, 2003. These dust layers, extending over one-tenth of a light-year from the star, have an onionskin structure that forms concentric rings. Beams of light radiate from the star hidden by a dust belt, running vertically through the image.
(Photo: AP/NASA)
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