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Date: 2011-02-15 04:06:48Spiral galaxies Andromeda constellation Andromeda Galaxy Milky Way Galaxy M31 Cosmic distance ladder The Great Debate Astronomy Local Group Extragalactic astronomy | Andromeda_Nebula_Grade_School_en_p4Add to Reading ListSource URL: kimigali.jpDownload Document from Source WebsiteFile Size: 1,15 MBShare Document on Facebook |