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The Herschel Telescope has given us a sneak preview of the infrared observational goodness we can expect from this new space telescope. The protective cryocover was taken off on June 14, and Herschel opened its 'eyes,' using the Photoconductor Array Camera and Spectrometer to take a few images of M51, ‘the whirlpool galaxy’ [...]
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The story shows a comparison of Spitzer vs Herschal, but doesn't specifically mention what wavelengths the Spitzer image was composed from.
While I don't know what the wavelengths are, it is interesting to note that Spitzer covers from about 3 microns out to 160 microns. The Herschal image is made of 70 through 160 microns. This makes the comparison all the more remarkable.
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