Featured Images
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
Aristarchus Spectacular!
West wall of Aristarchus crater seen obliquely by the LROC NACs from an altitude of only 26 km. Scene is about 12 km wide at the base, NAC M175569775 [NASA/GSFC/Arizona State University].
Published on 25 Dec 2011
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
Lichtenberg B Flow
Starting at the rim of the crater Lichtenberg B, impact melt flowed and formed a channel, pushing boulders aside in the process. LROC NAC M120257109R, image width is 430 m, incidence angle is 57° [NASA/GSFC/Arizona State University].
Published on 30 Nov 2011
Last Portion of Original Floor
Floor of unnamed crater inside the larger Humboldt crater. LROC NAC M113440414L. Image width is 765 m. Illumination is from left side of the image, incidence angle 54° [NASA/GSFC/Arizona State University].
Published on 03 Nov 2011
Crater Covered With Boulders!
Boulder-rich crater near Aitken N crater. LROC NAC M141132981R. Image width is 780 m, incidence angle is about 18°, sunlight from upper-right [NASA/GSFC/Arizona State University].
Published on 02 Nov 2011
Posidonius Y
A boulder perched on the rim of a Copernican crater in Mare Serenitatis. NAC frame number M168041107L, image width is 250 meters [NASA/GSFC/Arizona State University].
Published on 25 Oct 2011
Perched boulders
The crest of a linear floor fracture wall is alternately covered by boulders and smooth terrain. The largest boulders (right side of image) are ~ 30 m across. LROC NAC M159065590R, image width is 960 m [NASA/GSFC/Arizona State University].
Published on 11 Oct 2011
Ray of boulders
Dozens of boulders, ranging from 10 m to more than 30 m in diameter, are distributed within an ejecta ray close to the crater rim (lower right). These boulders represent the deepest material excavated during crater formation. LROC NAC...
Published on 18 Aug 2011
Recent Impact in Oceanus Procellarum
A small amount of impact melt pooled and froze on the floor of this Copernican impact crater, and is 90 x 70 m in size. What process creates impact melt pools? LROC NAC M111972680LE, image width is 750 m [NASA/GSFC/Arizona State...
Published on 12 Aug 2011
Tendrils in Reiner Crater
These elongate flows formed during their race towards the floor of Reiner crater. Boulders have piled up at the base of the flows. Are the flows impact melt, or something else? Downslope is to the upper left. LROC NAC M135548391LE,...
Published on 08 Aug 2011
Zebra Stripes
Boulders decorate the slopes of this wrinkle ridge in southern Oceanus Procellarum. Image number M135507772R, incidence angle 56°, image scale is 0.5 m/pixel [NASA/GSFC/Arizona State University].
Published on 29 Jun 2011
Ghost Crater in Southern Mare Crisium!
Crest of a wrinkle ridge in Mare Crisium lined with boulders that have most likely weathered out of the summit. LROC NAC M150138095LE, image width is 500 m [NASA/GSFC/Arizona State University].
Published on 23 Jun 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
Crater in Mare Humorum
This crater, located in Mare Humorum, is relatively fresh and very bouldered. LROC NAC M157851844LE, image width is 500 m [NASA/GSFC/Arizona State University].
Published on 24 May 2011
Another small volcano?
Along the embayed Eddington crater rim is an ~1.5 km dome that may be an ancient volcano with a summit pit crater. LROC NAC M148618400R, image width is 960 m [NASA/GSFC/Arizona State University].
Published on 27 Apr 2011
Forked wrinkle ridge
A wrinkle ridge in Oceanus Procellarum forks into two segments. Similar to many other wrinkle ridges, boulders are clustered on the ridge crest. LROC NAC M148536523L, image width is 720 m [NASA/GSFC/Arizona State University].
Published on 26 Apr 2011
Brisbane Z's Australean wrinkle ridge
A beautiful wrinkle ridge within Brisbane Z crater in Mare Australe. Image width is 500 m and illumination is from the left, LROC NAC M134714924L [NASA/GSFC/Arizona State University].
Published on 14 Apr 2011
Bouldery crater near Mare Australe
Low Sun image of a fresh crater in the lunar highlands. Boulders are scattered within and around the 550 m crater. Image width is 950m, LROC NAC M150062296R [NASA/GSFC/Arizona State University].
Published on 13 Apr 2011
Bright ridge near Mons Hansteen
Portion of wrinkle ridge extending from Mons Hansteen to the northeast. Illumination is from left, incidence angle is 26°, image width is 550 m [NASA/GSFC/Arizona State University].
Published on 08 Apr 2011