This image is in the public domain because it is a screenshot from
NASA’s globe software
World Wind using a public domain layer, such as Blue Marble, MODIS, Landsat, SRTM, USGS or GLOBE.
{{Information |Description={{en|1=Franklin Field, University of Pennsylvania}} |Source=http://worldwind.arc.nasa.gov/ |Author=NASA World Wind |Date=November 2008 |Permission= |other_versions= }} <!--{{ImageUpload|full}}--> [[Category:University of Pennsy
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