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Astronomy pictures of the week (2012.10.20-10.27) (5)

People's Daily Online)  09:37, October 27, 2012

The Medusa Nebula. Braided, serpentine filaments of glowing gas suggest this nebula's popular name, The Medusa Nebula. Also known as Abell 21, this Medusa is an old planetary nebula some 1,500 light-years away in the constellation Gemini. (Photo/ NASA)


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(Editor:姚春、马茜)

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