The Face on Mars: Summary of Image processing results

The "Face on Mars" has been the subject of a small and unusual debate for over 10 years. Initially dismissed by NASA as a trick of light and shadow when it was imaged by a Viking Orbiter in 1976, the "face" was rediscovered by DiPietro and Molenaar several years later. A series of independent investigations followed, which have prompted curious reactions from the planetary science community. The accompanying article by Crowe states a view expressed by many in that community that the "face," along with several other nearby objects, are naturally occurring geological formations.

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