Reprocessed Lunar Orbiter 4 image cropped in Adobe Photoshop to show Alexander crater and surrounding terrain. The spotty blemishes are present on the original image. The original image should be public domain as it is a work of the U.S. Government (NASA).
Immediate source: Lunar and Planetary Institute, Lunar Orbiter Photo Gallery Lunar Orbiter 4, image 103, h2 [1]
Material del Telescopio espacial Hubble puede tener copyright si no proviene explícitamente del Space Telescope Science Institute. [2]
Todo el material creado por la sonda espacial SOHO está protegido por copyright y requiere permiso para ser utilizado con fines comerciales o no educativos. [3]
{{Information
|Description = [[Alexander (crater)]], on the moon.
|Source = Reprocessed [[Lunar Orbiter 4]] image cropped in Adobe Photoshop to show Alexander crater and surrounding terrain. The spotty blemishes are present on the original image. The...
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