Featured Images
Impact Melt Flows on Giordano Bruno
Frozen impact melt flows on the ejecta blanket of the young impact crater Giordano Bruno (22 km diameter). The image is about 600 m across and the flows are about 50-100 m wide (NASA/GSFC/Arizona State University).
Published on 15 Dec 2009
Debris flows I
Debris flow extending down the southwest wall of Janssen K crater (a highlands crater about 16 km in diameter). Image width is 570 meters (NASA/GSFC/Arizona State University).
Published on 04 Dec 2009
Cluster of farside secondary craters
Cluster of secondary craters help geologists determine the relative ages of features, even when they are separated by great distances. Image width is 630 meters [NASA/GSFC/Arizona State University].
Published on 23 Nov 2009
Central Peak of Rutherfurd
LROC NAC view of boulders, on the floor of Rutherfurd crater, about to disappear into the shadows of dusk. Image width is 510 meters [NASA/GSFC/Arizona State University].
Published on 20 Nov 2009
Mountains of the Moon
Most mountains on the Earth are formed as plates collide and the crust buckles. Not so for the Moon, where mountains are formed as a result of impacts. Images taken looking across the landscape rather than straight down really bring out...
Published on 17 Nov 2009
Dark Craters on a Bright Ejecta Blanket
Dark materials excavated by later small impacts show up clearly on the bright ejecta of a small lunar crater (800 meters in diameter) to the west. Image width is 640 meters [NASA/GSFC/Arizona State University].
Published on 16 Nov 2009
High Noon at Tranquility Base
As the Apollo 11 Lunar Module (LM) neared the surface, Neil Armstrong could see the landing area was right on the rough bouldery ejecta of West crater. He had to change the flight plan and fly the LM westward to find a safe landing...
Published on 09 Nov 2009
Ejecta Blanket Features
Interactions between the mobilized material excavated during impact and the pre-existing surface formed dune-like and trough-like features in the ejecta blanket of Galvani B, a 15-km diameter crater. North is up, image resolution is...
Published on 06 Nov 2009
Landslides in Marius Crater
Landslide deposits seen on the steep interior slopes of Marius crater, image is 510 meters wide [NASA/GSFC/Arizona State University].
Published on 05 Nov 2009
More Impact Melt!
Frozen impact melt flows on the floor of Moore F, a farside highlands crater. Image width 600 m, 0.61 m/pixel, NAC image M110383422LE [NASA/GSFC/Arizona State University].
Published on 30 Oct 2009
The Floor of Saha E
Diverse textures on the floor of Saha E on the lunar farside. Image width is 1.08 km [NASA/GSFC/Arizona State University].
Published on 27 Oct 2009
Epigenes A
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...
Published on 23 Oct 2009
Bright Boulder Trail
High-albedo marks on the lunar surface left by a boulder bouncing down the northeast wall of farside highlands crater Moore F. Image width is 610 meters [NASA/GSFC/Arizona State University].
Published on 21 Oct 2009
Illumination comparison of a mare crater
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...
Published on 20 Oct 2009
Small crater on the wall of Metius B
Fresh crater on the southwest rim of Metius B crater. LROC NAC image width is 740 meters [NASA/GSFC/Arizona State University].
Published on 19 Oct 2009
Fresh Rim of Slipher S
The fresh, well-preserved rim of Slipher S. Uncalibrated LROC NAC data; image width is 600 meters [NASA/GSFC/Arizona State University].
Published on 16 Oct 2009
Bouncing, Bounding Boulders!
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...
Published on 15 Oct 2009
Asymmetric Ejecta
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...
Published on 13 Oct 2009
Ejecta sweeps the surface
Ejecta of a fresh crater streams across the the lunar highlands south of Mare Tranquillitatis. Image width is 520 m [NASA/GSFC/Arizona State University].
Published on 11 Oct 2009
Apollo 14 S-IVB Impact Crater
Crater (center of image) formed by impact of the Apollo 14 Saturn IVB booster. The booster was intentionally impacted into the lunar surface on February 4, 1971 to serve as an energy source to probe the interior structure of the Moon...
Published on 08 Oct 2009