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2007-04-10 12:45:51

Using a trio of space observatories, astronomers may have cracked a 45-year old mystery surrounding two ghostly spiral arms in the galaxy M106 (NGC 4258). The results, obtained by a team from the University of Maryland (USA), took advantage of the unique capabilities of the European Space Agency's XMM-Newton X-ray observatory, NASA's Chandra X-ray Observatory, and NASA's Spitzer Space Telescope. M106 (also known as NGC 4258) is a spiral galaxy 23.5 million light-years away, in the...