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Date: 2015-03-03 06:31:53Galaxy clusters Quasar Galaxy MS 0735.6+7421 Milky Way Chandra X-ray Observatory Cosmic distance ladder NGC Astrophysical X-ray source Astronomy Extragalactic astronomy Space | Precocious galaxy cluster identified by Chandra X-ray ObservatoryAdd to Reading ListSource URL: phys.orgDownload Document from Source WebsiteFile Size: 28,96 KBShare Document on Facebook |