Herschel PACS views of spiral galaxy M51
Date: 19 Jun 2009
Far-infrared image of M51, the whirlpool galaxy, at three different wavelengths (160, 100 and 70 microns), taken by the Herschel Photoconductor Array Camera and Spectrometer, PACS. These images clearly demonstrate that the shorter the wavelength, the sharper the image - this is a very important message about the quality of Herschel's optics, since PACS observes at Herschel's shortest wavelengths.
Last Update: 19 Jun 2009
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Herschel spectrum of the Galactic Centre 
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