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Old 14-10-2009, 10:34 PM
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star1961 (Lisa)
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Join Date: Jul 2009
Location: hallett cove
Posts: 50
a question regarding nebulae

nebulae are formed of gas and dust particles? why do they appear to stay in the same shape?

Last edited by star1961; 15-10-2009 at 10:55 PM.
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