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James ashley posts 57
The Ghosts of Mare Fecunditatis

The Ghosts of Mare Fecunditatis

A gentle topographic high marks the location of an ancient crater rim in Mare Fecunditatis (7.8°S; 51.3°E). NAC frame M146662326L, illumination is from the east, north is up, image is ~1 km wide [NASA/GSFC/Arizona State University].

Published on 31 Oct 2012

The Old and the Young in Tsiolkovskiy

The Old and the Young in Tsiolkovskiy

A recent impact narrowly missed an ancient extensional crack in Tsiolkovskiy crater (18.97°S; 130.34°E). Its crater is in the lower left. NAC frame M161455429R, illumination is from the east, north is up, image is 800 m wide...

Published on 30 Oct 2012

Diversity

Diversity

A variety of textures and reflectivities in the wall and floor of a recent crater within the ghost crater Daguerre in Mare Nectaris (11.9°S; 33.6°E). North is up; illumination is from the west, downslope is toward the top of the frame,...

Published on 27 Sep 2012

In the Wake of Giordano Bruno

In the Wake of Giordano Bruno

Fresh ejecta patterns the landscape outside Giordano Bruno (37.99°N; 101.62°E). North is up, illumination is from the east, image is ~840 m across, LROC NAC M146308704R [NASA/GSFC/Arizona State University].

Published on 26 Sep 2012

Dark Secondary Crater Cluster

Dark Secondary Crater Cluster

A collection of dark-haloed craters lines a sloping crater rim outside Sklodowska crater (19.21°S; 93.56°E). North is up; illumination is from the west-southwest, downslope is toward the east, image is ~625 m across, LROC NAC...

Published on 25 Sep 2012

A Beautiful Impact

A Beautiful Impact

Young impact craters sometimes present a striking array of tones in their ejecta. Illumination is from the southeast, image is ~500 m across, LROC NAC M156964572L [NASA/GSFC/Arizona State University].

Published on 31 May 2012

Brush Strokes on a Lunar Canvas

Brush Strokes on a Lunar Canvas

An irregular ejecta distribution from a fresh crater catches the eye. Illumination is from the south, image is ~600 m across, LROC NAC image M111265930L [NASA/GSFC/Arizona State University].

Published on 30 May 2012

Balcony Over Plato

Balcony Over Plato

A distinctive rock outcrop attracts attention along the north rim of Plato crater (51.6°N; 9.4°W). Illumination is from the southeast, downslope is toward the bottom of the frame, image is ~325 m across, LROC NAC M168257774L...

Published on 29 May 2012

The Rays of Messier A

The Rays of Messier A

A mare surface peppered with hundreds of small craters. Image width is 620 m, NAC frame M159650657L [NASA/GSFC/Arizona State University].

Published on 05 Apr 2012

Trapped at the Bottom

Trapped at the Bottom

A mound of debris has formed at the bottom of a small impact crater in the lava deposits of Cleomedes, width is ~500 m, north is up, NAC frame M121844756R [NASA/GSFC/Arizona State University].

Published on 04 Apr 2012

An Impact Melt Veneer in the Highlands

An Impact Melt Veneer in the Highlands

Fractured impact melt partially covered with regolith. Image width is 880 m, north is up, NAC frame M159650657L [NASA/GSFC/Arizona State University].

Published on 03 Apr 2012

Shattering Consequences

Shattering Consequences

Debris of variable reflectivity and size litters the floor of a small crater in the nearside lunar highlands. Illumination is from the south, image is ~410 m across; NAC image M170334512L [NASA/GSFC/Arizona State University].

Published on 09 Feb 2012

Outcrops in Laplace A

Outcrops in Laplace A

Debris flows and outcrops exposed in the walls of Laplace A crater. Illumination from southwest, image is ~525 m across, down-slope is to the right, LROC NAC M137725771R  [NASA/GSFC/Arizona State University].

Published on 08 Feb 2012

A Recent Journey

A Recent Journey

A large boulder stopped on its way down a sloping wall in the central peak complex of Schiller crater (51.8°S, 40.0°W). Illumination from the north, image is ~500 m across, NAC M109502471L [NASA/GSFC/Arizona State University].

Published on 07 Feb 2012

Shadows in Egede A

Shadows in Egede A

A field of boulders casts long shadows on the wall of Egede A crater. Illumination from south-southwest, image is ~400 m across, LROC NAC M122137079L [NASA/GSFC/Arizona State University].

Published on 19 Jan 2012

Melt Fractures in Jackson Crater

Melt Fractures in Jackson Crater

Fractures can be seen in profuse abundance on the Jackson crater melt pond surface. Illumination from west, north is up, image is  ~700 m across, LROC NAC M118560367L [NASA/GSFC/Arizona State University].

Published on 18 Jan 2012

Debris Flows in Gardner Crater

Debris Flows in Gardner Crater

Avalanche flows adorn the walls and floor of Gardner crater. Illumination from south-southwest, north is up, image is ~800 m across, LROC NAC M121987140R [NASA/GSFC/Arizona State University].

Published on 17 Jan 2012

Lobate Scarp or Fluidized Ejecta?

Lobate Scarp or Fluidized Ejecta?

A double escarpment merges with a single escarpment. LROC NAC frame M105463860R, incidence angle 51.0°, image width is ~1,500 meters [NASA/GSFC/Arizona State University].

Published on 10 Nov 2011

Bench Crater in Plato

Bench Crater in Plato

A small impact feature in the lava-filled crater Plato (51.6° N, 9.3° W) exhibits an interesting morphology. LROC NAC frame M137610258L, incidence angle 60°, sun is from the SSW, image width is 550 meters [NASA/GSFC/Arizona State...

Published on 09 Nov 2011

The Chicken or the Egg?

The Chicken or the Egg?

Building-sized boulders are partially coated in impact melt. LROC NAC frame M140840176R, incidence angle is 39.6°, sun is from the south, image width is 540 meters [NASA/GSFC/Arizona State University].

Published on 08 Nov 2011