Total posts from Jeffrey Plescia 12
13 Dec 2013
Station 6 allowed Apollo 17 astronauts to explore a collection of boulders and regolith that represents the rocks from the mighty North Massif. Five large boulder fragments lie at the base of a long boulder trail, all from a single boulder that rolled down the hill and broke apart. NAC image M134991788R [NASA/GSFC/Arizona State University].
31 Oct 2013
A 78 m diameter crater with distinct dark ejecta surrounding the crater rim. The crater formed in the highlands (31.131°S, 147.536°E) north of the crater Jules Verne, LRO NAC frame M1115555142L [NASA/GSFC/Arizona State University].
18 Mar 2013
The twin GRAIL spacecraft impacted the Moon on 17 December 2012, LROC was able to image the impact craters on 28 February 2013 showing them both to be about 5 meters in diameter. Upper panels show the area before the impact; lower panels after the impact. Arrows point to crater locations [NASA/GSFC/Arizona State University].
07 Feb 2013
A group of rocks, a small shallow crater, and rays of ejecta occur together on one of the fault terraces of the crater Archimedes. LRO NAC M109256375R [NASA/GSFC/Arizona State University].
06 Feb 2013
This image shows the lower part of the northeast inner wall of the Kepler impact crater. Loose material is sliding down the inner crater from near the rim crest (upper right) and ponding on a part of the crater floor. LROC NAC M104755664L [NASA/GSFC/Arizona State University].
05 Feb 2013
Small portion of a S-shaped meandering rille on the floor of Posidonius Crater (31.93°N, 29.85°E, 100 km diameter) - a floor-fractured crater. The curves in the rille are very tight. LROC NAC M1098658474R [NASA/GSFC/Arizona State University].
04 Jan 2013
Three impact craters (125-180 m diameter) that may have formed in a contemporaneous impact event. NAC image M106827539L [NASA/GSFC/Arizona State University].
03 Jan 2013
Compression and extension in Mare Tranquillitatis. A northeast-trending wrinkle ridge has overridden a northwest-trending graben. LROC NAC image M192774961L [NASA/GSFC/Arizona State University].
14 Aug 2012
This giant flow of impact melt extends northward from a much larger mass of impact melt on the northern rim of the Tycho impact crater. This one section of the flow is more than 10 km long. LROC NAC M185954551R [NASA/GSFC/Arizona State University].
25 Jul 2012
A circular depression (700 m diameter) sits atop of a circular mound 3.7 km in diameter. It is either a perfectly placed impact crater on the hill's summit, or a volcanic vent. LROC NAC M181173832LR [NASA/GSFC/Arizona State University].