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279 bytes added ,  14:45, February 28, 2012
some well-known nebulae
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A '''nebula''', from the [[Latin]] word for ''[[cloud]]'', is a cloud of interstellar [[dust]] and [[gas | gases]]. <ref>http://fusedweb.pppl.gov/CPEP/Chart_Pages/5.Plasmas/Nebula.html</ref>. Nebulae have been observed both within the [[Milky Way]] [[galaxy]] and in other galaxies. These large clouds of mostly hydrogen gas can form stars and planets. Secular scientists believe our solar system formed about 4.6 billion years ago from a nebula. <ref>http://www.windows.ucar.edu/tour/our_solar_system/formation.html</ref>
 
A '''nebula''', from the [[Latin]] word for ''[[cloud]]'', is a cloud of interstellar [[dust]] and [[gas | gases]]. <ref>http://fusedweb.pppl.gov/CPEP/Chart_Pages/5.Plasmas/Nebula.html</ref>. Nebulae have been observed both within the [[Milky Way]] [[galaxy]] and in other galaxies. These large clouds of mostly hydrogen gas can form stars and planets. Secular scientists believe our solar system formed about 4.6 billion years ago from a nebula. <ref>http://www.windows.ucar.edu/tour/our_solar_system/formation.html</ref>
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Some well-known nebulae are the [[Orion]] Nebula, the [[Crab]] Nebula, and the [[Horse]]-Head Nebula.
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Nebulae often feature prominently in commercially available collections of deep-space images, since their colours and shapes are interesting, varied and curiously attractive.
    
==External Links==
 
==External Links==
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