Nebula and Stars

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Cassiopeia a Supernova Remnant — Blue, Dramatic

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Cat's Eye Nebula — Red, Dramatic, Photograph, Stars

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Chandra X-ray image of a nebula

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Tarantula Nebula in X-ray

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X-ray view of a nebula

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Whirlpool Galaxy

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Cat's Eye Nebula — Blue, Dramatic, Photograph

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NGC 4258 galaxy

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Eta Carinae star system

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M87 Galaxy Core

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Supernova Remnant — Purple, Dramatic, Night, Photograph, Stars

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