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Ejecta From Copernicus
LRO image from Sept. 30, 2010› View larger image

One of the geologic features that makes Copernicus crater special is its extensive, high-reflectance ejecta rays that extend across nearby mare and superpose (overlap) ejecta from other craters - Copernican ejecta extends more than 500 km from the impact site! In this high-Sun image, albedo differences are enhanced and the arrows indicate several "fingers" of ejecta and the direction of ejecta emplacement (away from Copernicus, which is to the southwest). LROC NAC image M127050121L, image width is 470 m. Credit: NASA/GSFC/Arizona State Unversity

Check out Wilhelms' Geologic History of the Moon for more information about Copernicus crater and the lunar geologic timescale.

LRO image from Sept. 30, 2010› View larger image

LROC Wide Angle Camera 400 m/pixel monochrome mosaic of Copernicus crater (93 km diameter). The arrow indicates the approximate position of the NAC image above. Credit: NASA/GSFC/Arizona State University

Explore all of LRO's incredible images at the LRO site at Arizona State University.