Infrared, or submillimeter, light with a wavelength of 250 microns is represented in blue; 350-micron light in green; and 500-micron light in red. Much of this region of our galaxy would be hidden in visible-light views.
The area pictured is in the plane of our Milky Way galaxy, 60 degrees from the center. It spans a region 2.1 by 2.1 degrees.
This image was taken by Herschel's spectral and photometric imaging receiver. Herschel is a European Space Agency mission with important participation from NASA.Image credit: ESA/NASA/JPL-Caltech