This image of Andromeda, M31, uses the PACS, as well as the SPIRE instruments, to observe infrared wavelengths of 70 microns (blue), 100 microns (green), and 160 and 250 microns combined (red).
April 30, 2013 3:27 PM PDT
Photo by: ESA/Herschel/PACS & SPIRE Consortium, O. Krause, HSC, H. Linz
| Caption by: James Martin
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