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Date: 04 January 2011 Satellite: XMM-Newton Depicts: M31 - Andromeda Galaxy Copyright: ESA/XMM-Newton/EPIC/W. Pietsch, MPE Show in archive: true
This image shows the Andromeda galaxy, also known as M31, the nearest major galaxy to the Milky Way, as observed by ESA's X-ray observatory, XMM-Newton.