Featured Images
Young Highlands Crater
Two small melt flows solidified on the wall of a young crater, and melt pooled in its center. LROC NAC M188270580RE, image width is 700 m [NASA/GSFC/Arizona State University].
Published on 22 Aug 2012
Four Leaf Clover
Several large depressions dot the surface of Mare Imbrium, giving the impression of a four leaf clover. LROC NAC M190780929RE, image width is 1500 m [NASA/GSFC/Arizona State University].
Published on 21 Aug 2012
Simpelius Scarp
A lobate scarp formed in the lunar highlands. Lunar scientists keep finding more of these tectonic features as LROC NAC image coverage of the lunar surface continues to increase. LROC NAC M106807247L, image width is 1000 m...
Published on 12 Jul 2012
Weaving boulder trails on the Moon
Boulders have rolled downslope creating tracks along the way. The locations of some boulders that have come to a stop are visible, but several tracks curve off further downslope. LROC NAC M176791784R, image width is 500 m...
Published on 11 Jul 2012
Sunny Side Up
The center of Linné F is filled with a small mound surrounded by a moat of impact melt rock. Image width is ~1450 m, LROC NAC M190509409 [NASA/GSFC/Arizona State University].
Published on 10 Jul 2012
A Wrinkly Crater
An unnamed crater deformed by tectonic forces. LROC NAC M183760209L, image width is 960 m [NASA/GSFC/Arizona State University].
Published on 08 Jun 2012
On the Edge
Small craters and ejecta dot the landscape just over the crest of Manzinus M's rim, marked by the shadow on the bottom of the image. Several lineations run parallel to the rim while cross-cutting small craters. Image width is 500 m, NAC...
Published on 04 Jun 2012
Impact Melt Lobes
Impact melt flowed down the wall of Lowell crater forming two lobes when it solidified. The first lobe was breached or overtopped by a second flow in a manner probably similar to lava flows on Earth. LROC NAC M184196652RE, sun is from...
Published on 12 Apr 2012
Flow Boundary
A small scarp is exposed in this high incidence angle NAC. The area to the east (right) of the scarp is raised relative to the area on the west (left). LROC NAC M177792062L, image width is 610 m [NASA/GSFC/Arizona State University].
Published on 11 Apr 2012
Smooth Ejecta
Grooved surface created in an instant by an impact event. The linear pattern is radially symmetric around the parent crater; the parent crater must be very young as very few craters dot the ejecta blanket! LROC NAC M171788458RE, image...
Published on 10 Apr 2012
Impact Melt Boundary
Dry debris flows terminate on the cracked and bouldery melt sheet in Moltke. A textural change marks the boundary between crater wall and impact melt deposits embaying the crater floor. Image width is 1100 m, LROC NAC M122591558L...
Published on 24 Feb 2012
Not so Simple!
A step is present in between a small crater's floor and rim. The crater also displays a high density of boulders on its surface. Image width is 330 m, LROC NAC M122700360L [NASA/GSFC/Arizona State University].
Published on 22 Feb 2012
Rim on a Rim
A small fresh crater is positioned on the rim of Hermann B crater. Material slides down the crater wall to the crater's center, creating small headscarps along the rim. Image width is 650 m, LROC NAC M117867678RE [NASA/GSFC/Arizona...
Published on 21 Feb 2012
Galilaei's Layered Wall
Layers of material are exposed in Galilei crater's wall, sloping downwards to the bottom left. Each successive layer provides a step back in time and hints at the process that formed the layers. LROC NAC M160363453LE, image width is 500...
Published on 04 Jan 2012
Fresh Bench Crater in Oceanus Procellarum
This fresh crater in Oceanus Procellarum has a bench along its crater wall, and boulders are strewn among its ejecta blanket as well. What does this crater tell us about the local geology? LROC NAC M160363812RE, image width is 500 m...
Published on 22 Dec 2011
Herigonius K Impact Melt Flow
Grooves carved out by ejecta during the Herigonius K impact event provide channels for impact melt to flow outwards. Small cracks can be seen on the impact melt surface, possibly from contraction as the impact melt cooled. LROC NAC...
Published on 14 Dec 2011
Detour!
A high albedo granular flow traveled down the wall of Dionysius crater. Why is the flow curving around the crater floor? LROC NAC M111484008R, image width is 500 m [NASA/GSFC/Arizona State University].
Published on 28 Nov 2011
Polka-dot Ejecta
A blanket of fresh ejecta is dotted with smaller low albedo craters. LROC NAC M123513537R, image width is 560 m [NASA/GSFC/Arizona State University].
Published on 23 Nov 2011
Shades of Grey
Two streaks of high and low reflectance blocky ejecta from the same crater. A large boulder rests in the low reflectance deposit. LROC NAC M168862555R, image width is 500 m [NASA/GSFC/Arizona State University].
Published on 22 Nov 2011
Brush Strokes of Ejecta
Ejecta with a subtle chevron texture drapes the northern lunar highlands. The ejecta is pockmarked by few small craters, suggesting it is from a recent impact. LROC NAC M170937919R, image width is 500 m [NASA/GSFC/Arizona State University].
Published on 20 Oct 2011