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• Galileio bei seinem zweiten Vorbeiflug an der Erde, aufgenommen aus etwa 500 tausend Kilometern Entfernung: man sieht unten Nordafrika und Arabien: an welchen Messdaten der Sonde könnte eine außerirdische Zivilsation erkennen, dass es "da unten" eine Zivilisation mit intelligenten Lebensformen gibt?
  

• Beschreibung der Aufnahme Nordafrikas: "This image of northeast Africa and the Arabian Peninsula was taken from an altitude of about 500,000 kilometers (300,000 miles) by the Galileo spacecraft on December 9, 1992, as it left Earth en route to Jupiter. Visible are most of Egypt (left of center), including the Nile Valley; the Red Sea (slightly above center); Israel; Jordan, and the Arabian Peninsula. In the center, below the coastal cloud, is Khartoum, at the confluence of the Blue Nile and the White Nile. Somalia (lower right) is partly covered by clouds."
  

Source Nordafrika

• Source: https://commons.wikimedia.org/wiki/File:Northeast_Africa_and_the_Arabian_Peninsula_from_space.jpg
  

• Created: December 9th, 1992
  

• Author: NASA/JPG
  

• Copyright: This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted".
  

Source Galileo-Sonde

• Source: https://commons.wikimedia.org/wiki/File:Galileo_actual_3D_model.stl
  

• Created: April 1st, 2012
  

• Author: Brian Kumanchik, Christian Lopez. NASA/JPL-Caltech
  

• Credit: NASA
  

• Copyright: This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted".
  

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