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Mariner 9 Television Reconnaissance of Mars and Its Satellites: Preliminary Results https://t.co/f4oHHEOD31 https://t.co/4wCXq2bzA8
Mariner 9 Television Reconnaissance of Mars and Its Satellites: Preliminary Results https://t.co/f4oHHEOD31 https://t.co/4wCXq2bzA8
@NASA The paper on preliminary results from Mariner 9 called them "spots" because nobody knew what they were yet.🤔❓ https://t.co/aIJUMGoBLH