Featured Images

At the Top of the Avalanche

Bedrock benches are visible near the top of an avalanche on the central peak of Langrenus crater (8.79°S, 61.22°W). LROC NAC M139504224L, downslope is to the lower left, image width is ~550 m [NASA/GSFC/Arizona State University].

Published on 06 Oct 2011

An Ill-defined Portion of an Otherwise Circular Rim

A neat crater rim (upper right) is abruptly truncated by a pile of debris (lower left). LROC NAC M139694087R, north is up, incidence angle is 9.32°, image width is 500 m [NASA/GSFC/Arizona State University].

Published on 05 Oct 2011

A Scar in the Highlands

A curvilinear valley calls attention to itself by virtue of its apparent isolation from the surrounding terrain. LROC NAC M153632648L, north is up, sun is from the southwest, incidence angle 33°, image width is ~460 m [NASA/GSFC/Arizona...

Published on 04 Oct 2011

A Gathering in Lacus Mortis

Boulders meet in a valley of the central peak of Bürg crater (45.0°N, 27.2°E). NAC image M111415328L; incidence angle is 51.7°. Sun is from the south-southeast, north is up, image is ~440 m across [NASA/GSFC/Arizona State University].

Published on 22 Sep 2011

On the Shore of the Bay of Rainbows

A pair of small craters show different albedos within a spectacular ejecta display along the shore of Sinus Iridum (47.9°N, 31.7°W). NAC image M104726204L, incidence angle 65°, Sun is from the southwest, north is up, image is ~1.6 km...

Published on 21 Sep 2011

Dark Wisps in Copernicus

Dark streaks ornament a slope along the Copernicus crater rim (9.3°N, 21.5°W). Down-slope is to the right. NAC image M11735067L, incidence angle 32°, Sun is from the east, north is up, image is ~400 meters across [NASA/GSFC/Arizona...

Published on 20 Sep 2011

The Lavish Lobes of Necho R

What geologic process created these mounds (5.72°S, 122.09°E)? NAC image number M106074338R; incidence angle 35°, Sun is from the west, north is up, image is ~600 meters across [NASA/GSFC/Arizona State University].

Published on 21 Jul 2011

Crash or Coincidence?

An odd-looking impact feature raises an intriguing, Apollo-era trivia question (3.02°N, 119.15°E). NAC image number M141485413; incidence angle 12°; Sun is from the east; north is up; image is ~600 meters across [NASA/GSFC/Arizona State...

Published on 20 Jul 2011

Layering in Messier A

Avalanches festoon the layered walls of Messier A crater (2.2°S, 46.9°E). NAC image number M126622485R, incidence angle 25°, Sun is from the east, north is up, image is ~625 meters across [NASA/GSFC/Arizona State University].

Published on 19 Jul 2011

Frozen in Time

Boulder migration is arrested by a gentle change in slope (20.14°N, 310.03°E). NAC image number M137875459R; incidence angle 36°; sun is from the southwest; north is up; image is ~460 meters across [NASA/GSFC/Arizona State University]

Published on 09 Jun 2011

Rubble Pile on Fresh Crater Floor

Appearing highly textured, a mixture of boulders, cobbles, and fine material partly fills a relatively fresh impact crater (12.7°S, 291.2°E). NAC image number M112047758R; incidence angle 35°; sun is from the east; north is up; image is...

Published on 08 Jun 2011

Dark-haloed crater in Mare Humorum

Dark- and light-toned lunar soils contrast sharply in this striking image of a dark-haloed crater in Mare Humorum (24.8°S, 45.0°W). NAC image number M140203430R; incidence angle 24°; Sun is from the north; north is up; image is ~450...

Published on 07 Jun 2011

Fault scarp with impact melt in King crater

A fault scarp separates two zones of impact melt within the King crater wall (5.0°N, 120.5°E). NAC image number M115529715RE; incidence angle 75°; Sun is from the right, image is ~900 meters across; north is up [NASA/GSFC/Arizona State...

Published on 10 May 2011

King crater ejecta deposits

Deceleration lobes in King crater (5.0°N, 120.5°E) ejecta. Image number M103739394LE; incidence angle 61°; image is ~1,200 meters across [NASA/GSFC/Arizona State University]

Published on 04 May 2011

Anomalous mounds on the King crater floor

Odd-looking mounds on the floor of King crater (5.0°N, 120.5°E). Image number M115522928LE; incidence angle 75°; image is ~900 meters across [NASA/GSFC/Arizona State University]

Published on 03 May 2011

Impact melt on Klute W wall

Impact melt deposits on interior wall of Klute W crater. Image is 900 meters wide, LROC NAC M143201144RE [NASA/GSFC/Arizona State University].

Published on 01 Apr 2011

Post-impact modification of Klute W

Fractured and slumping rim of Klute W crater. Image is 900 meters wide, LROC NAC M143201144RE [NASA/GSFC/Arizona State University].

Published on 31 Mar 2011