星系壁纸
by ESA/PACS & SPIRE consortia, A. Rivera-Ingraham & P.G. Martin, Univ. Toronto, HOBYS Key Programme F. Motte
NASA Image Library · 公有领域（Public Domain）
关于这张图
W3 is an enormous stellar nursery about 6,200 light-years away in the Perseus Arm, one of the Milky Way galaxy main spiral arms as seen by ESA Herschel space observatory.
