Postage stamp images of the same 5′  ×  5′ region of the GOODS-north field ranging from 3.6 μm (upper-left) to 500 μm (bottom-right). Upper panel: five Spitzer images (85 cm telescope diameter) obtained with IRAC at 3.6 and 8 μm, the IRS peak-up array at 16 μm and MIPS at 24 and 70 μm (from upper-left to upper-right). Bottom panel: five Herschel images (3.5 m telescope diameter) obtained with PACS at 100 and 160 μm and SPIRE at 250, 350 and 500 μm (from bottom-left to bottom-right).