28 Oct 2009
27 Oct 2009
23 Oct 2009
A plethora of boulders surrounds braided flows of impact melt along the inside wall of crater Epigenes A. As the melt moves toward the crater floor (direction indicated by white arrow), the flow buries and moves boulders. Epigenes A is a 18 km diameter crater located at 66.9°N and 0.3°W on the rim of crater W. Bond. The NAC image is 540 meters wide [NASA/GSFC/Arizona State University].
21 Oct 2009
20 Oct 2009
Same crater from two LROC NAC frames under very different lighting. On the left the Sun was midway to the horizon and on the right the Sun was high, approaching noon. Under lower Sun, surface roughness is quite evident; under higher sun (right) variations in brightness (reflectance) dominate the scene [NASA/GSFC/Arizona State University].
19 Oct 2009
16 Oct 2009
The fresh, well-preserved rim of Slipher S. Uncalibrated LROC NAC data; image width is 600 meters [NASA/GSFC/Arizona State University].
15 Oct 2009
Many boulder trails are found on the lunar crater walls and basin massifs. Some of the trails are smooth and nearly straight while others are curvy or gouge into the surface. In many cases by following a boulder's trail you are led back to its point of origin, useful information for a future geologist sampling otherwise unreachable points. Image width is 600-m across, north is up, and the boulder in the lower left-hand corner is 15-m across, unnamed 15-km diamater crater southwest of Rowland crater [NASA/GSFC/Arizona State University].
13 Oct 2009
Distinctive asymmetrical ejecta surrounding a 140 meter diameter crater in the lunar highlands. Crater is located on the northeastern rim of the eroded (pre-Nectarian) crater Hommel at -52.9° N and 34.6° E. Image width is 600 meters and north is up, 0.6 m/pixel resolution [NASA/GSFC/Arizona State University].
11 Oct 2009