WIRED Space Photo of the Day: Pulsating Stellar Ghost
 

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This NASA/ESA Hubble Space Telescope image shows the planetary nebula NGC 2452, located in the southern constellation of Puppis. The blue haze across the frame is what remains of a star like our Sun after it has depleted all its ...http://feeds.wired.com/c/35185/f/661...4/sc/38/mf.gif
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