Traces of the disc surrounding our Solar System. The blue band curving across this image is created by the dust disc surrounding our Solar System. Viewed from afar this would show up as a bright ring surrounding the Sun.
The bright band running across the centre of the image is from dust in our Galaxy.
This image, taken by the COBE satellite, is a composite of three far-infrared wavelengths (60, 100, and 240 microns).
(Photo: Michael Hauser (Space Telescope Science Institute), the COBE/DIRBE Science Team, and NASA)