The Herschel Space Observatory has uncovered a strange ring of dusty material while obtaining one of the sharpest scans to date of a huge cloud of gas and dust, called NGC 7538. The gigantic ring structure is situated at the center-top of this image. It possesses the mass of 500 suns, with its long axis spanning about 35 light-years and its short axis about 25 light-years. The blue and green colors in this image represent 70- and 160-micron data, respectively, from Herschel's Photoconductor Array Camera and Spectrometer (PACS) instrument. The red colors are 250-micron observations obtained from Herschel's Spectral and Photometric Imaging Receiver (SPIRE) instrument. Herschel is a European Space Agency mission, with science instruments provided by a consortia of European institutes and with important participation by NASA.