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Nanook
 Post subject: Hubble Images
PostPosted: Fri Sep 14, 2007 2:21 am 
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What are those "things" that look like little chunks of dirt floating in the nebula? What gives it such diverse colors? I sure hope they keep the Hubble alive. You can get sharp images with adaptive optics from a ground based telescope but only over a very narrow field of view.
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Nanook
PostPosted: Fri Sep 14, 2007 2:25 am 
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We are star dust.
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Nanook
 Post subject: Cassiopeia A
PostPosted: Fri Sep 14, 2007 2:28 am 
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This exploded in the 1600s our time, actually about 10,000 years before that because it's about 10,000 light years away. It is the youngest known supernova remnant.
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