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This file is in the public domain because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |
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Derived from http://earthobservatory.nasa.gov/Library/Giants/Milankovitch/Images/orbital_variation.gif
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File usage
The following pages on Schools Wikipedia link to this image (list may be incomplete):
Through Schools Wikipedia, SOS Childrens Villages has brought learning to children around the world. SOS Children's Villages helps more than 2 million people across 133 countries around the world. Why not try to learn more about child sponsorship?