image shows the dramatically different view of our sky when viewed in
far infrared light. At this wavelength of 100 microns, the light from
stars is imperceptible against the cool glow of vast dust clouds warmed
by the stars' light. In visible light such dust blocks our view of more
distant stars and galaxies, but in far-infrared light it glows
dramatically. Significantly, some of it also reflects blue light that
can be captured in very deep optical exposures.
Image was made from data from IRAS