Artist impression of the debris disk and planets around the star known as Gliese 581, superimposed on Herschel PACS images at 70, 100, and 160 micrometer wavelengths. The line drawing superimposed on the Herschel image gives a schematic representation of the location and orientation of the star, planets, and disk, albeit not to scale. The black oval outline sketched onto the Herschel data represents the innermost boundary of the debris disk; the approximate location of the outermost boundary is represented by the outer set of dashed lines. It is not possible to identify the central star due to smearing of the Herschel data. // Credit: ESA/AOES