MESSENGER's Second Mercury Flyby (1 of 2) (IMAGE)

American Association for the Advancement of Science (AAAS)

MESSENGER's Second Mercury Flyby (1 of 2)

Caption

These are two simple cylindrical views of Mercury over +/-75° latitude, 0° to 360°E longitude. (A) Enhanced color MDIS (Mercury Dual Imaging System) WAC (wide-angle camera) mosaics. Areas in white are regions not yet imaged by MESSENGER. (B) Geologic map of Mercury from MESSENGER WAC and NAC (narrow-angle camera) mosaics and Mariner 10 clear-filter mosaics. Light yellow, HRP (high-reflectance red plains) and IP (intermediate plains); dark yellow, LBP (low-reflectance blue plains); light blue, regional LRM (low-reflectance material); dark blue, LRM center; black, other (fresh crater ejecta or IT (intermediate terrain)); and white, no data. Crosshatches indicate areas not mapped because of high Sun illumination. Areas near the terminator in (A) appear unnaturally red; until the final WAC calibration is available, color distinctions are subject to revision. This image accompanied the report, “The Evolution of Mercury’s Crust: A Global Perspective from MESSENGER,” by B. Denevi and colleagues appearing in the May 1, 2009, issue of Science.

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Image courtesy of <i>Science</i>/ AAAS

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