Fragmented Impact Melt
December 6, 2012
Today's Featured Image looks like a parched Arizona mudflat after a monsoon downpour. Not quite! You are looking at the broken surface of an impact melt pond inside Giordano Bruno crater. A surface crust fragmented into angular blocks up to about 40 m in width as still molten rock was drained from beneath a hardening crust. The small clusters of relatively bright rock fragments are likely boulders that rolled down from the nearby steep walls. Western floor of Giordano Bruno crater. LROC NAC M110919730L, 0.61 m/pixel, image width is about 737 m. Illumination is from the lower right, incidence angle is 42° [NASA/GSFC/Arizona State University].