Here are other optical and submillimeter pictures.
Star burst is the dominant theme in the SHARC2 image in the middle.  In addition, the SHARC2 image shows the site of future action for starburst where it has abundant supply of cold dust and gas.  The image on the right overlays SHARC2 contours on an HST image in optical wavelength.  The sub-millimeter image complements the optical images in revealing the actions deeply embedded in the dense cores of dust and gas, not visible in the optical images.
Ruisheng Peng