ESA/PACS & SPIRE Consortium, O. Krause, HSC, H. Linz.
Andromeda galaxy in far-infrared
This far-infrared image of M31, the Andromeda galaxy, was taken by the Herschel Space Observatory on Feb. 6, 2013. Star-forming regions of gas with temperatures barely above absolute zero are shown in orange, while slightly warmer, older stars in the central bulge are shown in blue.
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Original image data dated on or about February 6, 2013