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Bruce Murray Space Image Library

Viking Orbiter map of Mars (1975)

Viking Orbiter map of Mars (1975)
Viking Orbiter map of Mars (1975) The twin Viking Orbiters captured more than 50,000 individual images of Mars, producing a global atlas of the red planet at a variety of resolutions. Although the high-resolution data was supplanted by Mars Global Surveyor's in the late 1990s, the Viking global map remained the best available to researchers for nearly three decades. NASA / JPL / USGS / Phil Stooke