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12-20-2013, 10:35 PM
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WIRED Space Photo of the Day: Smoky Rings in Space
 The hazy and aptly named Fine Ring Nebula, shown here, is an unusual planetary nebula. Planetary nebulae form when some dying stars, having expanded into a red giant phase, expel a shell of gas as they evolve into white dwarfs. ...       أكثر... ??????? ??????: WIRED Space Photo of the Day: Smoky Rings in Space || ??????: rss || ??????: اسم منتداك
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