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Caption: The Andromeda Galaxy, M31, is a spiral galaxy a mere 2.5 million light-years away. Two space-based observatories have combined to produce this intriguing composite image of Andromeda, at wavelengths outside the visible spectrum. The view follows the locations of this galaxy's once and future stars. In reddish hues, image data from the large Herschel infrared observatory traces enormous lanes of dust, warmed by stars, sweeping along Andromeda's spiral arms. The dust, in conjunction with the galaxy's interstellar gas, comprises the raw material for future star formation.
Credit: Album / World History Archive
Image size: 4901 × 3600 px | 50.5 MB
Print size: 41.5 × 30.5 cm | 1929.5 × 1417.3 in (300 dpi)