Image: Paranal-Gegenschein

Description: At Paranal, home of ESO's Very Large Telescope, the sky is so dark that the famous and extremely difficult to observe Gegenschein (or "counter shine") can be seen here . This is a faint brightening of the night sky in the region of the ecliptic directly opposite the Sun, caused by reflection of sunlight by interplanetary dust in the Solar system.
Title: Paranal-Gegenschein
Credit: http://www.eso.org/gallery/v/ESOPIA/Paranal/Paranal-Gegenschein.tif.html
Author: ESO/Stéphane Guisard
Permission: This photograph was produced by European Southern Observatory (ESO). Their website states: "All ESO still and motion pictures, with the exception of the ESO Logo, are released under the Creative Commons Attribution 4.0 International License, unless the credit byline indicates otherwise." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. This file is licensed under the Creative Commons Attribution 4.0 International license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). http://creativecommons.org/licenses/by/4.0 CC BY 4.0 Creative Commons Attribution 4.0 truetrue
Usage Terms: Creative Commons Attribution 4.0
License: CC BY 4.0
License Link: http://creativecommons.org/licenses/by/4.0
Attribution Required?: Yes