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Viking 2 touched down in Utopia Planitia, becoming the first American probe to s
Featured Event 1976 Event

September 3

Viking 2 Lands on Mars: Red Planet Explored

Viking 2 touched down in Utopia Planitia, becoming the first American probe to successfully operate a lander on the Martian surface alongside its twin. This achievement delivered the first high-resolution color images of the Red Planet and confirmed that the soil contained no detectable signs of life, fundamentally changing our understanding of Mars as a sterile world rather than a potential home for biology.

September 3, 1976

50 years ago

Key Figures & Places

What Else Happened on September 3

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