Featured Images

Thick and Sticky Melt-Rock

Colorized slope map of a fresh impact crater and its ejecta. A deposit of solidified melt-rock and debris was formed at the end of the impact event on the floor of this 1.5-km diameter crater. The flat-lying floor materials (purple,...

Published on 15 Apr 2016

Chappy Oblique

Spectacular oblique view (65° slew angle) of a 1400 m diameter crater that formed on the rim of Chaplygin crater. Delicate lacy fingers of ejecta highlight the hummocky and steep topography around this young crater. The very brightest...

Published on 18 Mar 2016

Chappy

NW wall of spectacular young impact crater perched on the rim of Chaplygin crater. The dark smooth material (bottom right) is solidified impact melt that originally pooled on the crater floor; the dark, middle and bright tones on the...

Published on 01 Mar 2016

NAC Anaglyph: Giordano Bruno Ejecta

Ejecta patterns resulting from materials thrown out of Giordano Bruno during crater excavation [NASA/GSFC/Arizona State University].

Published on 12 Jun 2015

Shapes of Craters

Oblique view of Tycho crater looking from east-to-west. Image was acquired on 2 November 2014 from an altitude of 59 km (M1169552252LR). The central peak rises more than 2000 m (6562 ft) above the crater floor and the far wall exhibits...

Published on 28 May 2015

NAC Anaglyph: Messier Impact Melt

Impact melt deposits outside the west rim crest of Messier crater show evidence of ponding and flow before they cooled and solidified [NASA/GSFC/Arizona State University].

Published on 15 May 2015

LROC NAC Anaglyph: Perched Crater

Craters on top of craters! Shown here is a crater that is perched on the southwest rim of Darwin C, a highly degraded crater in the southeastern lunar nearside [NASA/GSFC/Arizona State University].

Published on 16 Jan 2015

Mottled Mound

Low-incidence angle image (~9°, near noon) of a curious mound on the floor of Firsov crater. Image width is 2.2 km [LROC NAC M187506567RNASA/GSFC/Arizona State University].

Published on 14 Nov 2014

Lovely Lichtenberg B

Lichtenberg B is a beautifully preserved young impact crater. Rock outcrops in the upper portion of the crater wall are due to the successive thin lava flows that filled Oceanus Procellarum more than 3 billion years ago. The crater is...

Published on 02 Sep 2014

Frozen Motion

The scoured floor of Harkhebi J crater, near the young crater Giordano Bruno (22 km diameter). Ejecta from Giordano Bruno flowed across the surface, leaving a record for us to see today. LROC NAC image M1128791817L; north is up and the...

Published on 20 Aug 2014

Fresh, But Not So Clean

LROC NAC image M131515002R showing two similarly sized craters, ~500 m in diameter, but one is littered with boulders and the other is not.  This boulder discrepency is most likely due to age differences between the two craters....

Published on 12 Aug 2014

Making a Splash at King Crater

Impact melt ponds adorn the lumpy terraces of King crater. If you look carefully, you can see small fractures in some of the these ponds. LROC NAC mosaic (M1159315479L/R), image width is approximately 8 km [NASA/GSFC/Arizona State...

Published on 29 Jul 2014

Breaking Down Walls

Gravity is winning as boulders tumble down from the rim of Moore F (~24 km in diameter) in this LROC NAC mosaic (M1156517189) [NASA/GSFC/Arizona State University].

Published on 24 Jun 2014

Slump or Slide

Rock and debris slumped from northwest to southeast (upper left to center) and cascaded into the floor of a linear topographic low (depression or graben) near Milichius crater; arrows indicate the direction of movement. NAC M190794864L;...

Published on 16 Jan 2014

Bowl of Boulders in Steno Q

Boulders collect in a small depression in the middle of the central peak of Steno Q crater. Some of these boulders are as big as houses! Image width is 1.5 km, portion of NAC controlled mosaic, illumination from the southeast...

Published on 12 Dec 2013

On the Edge

An oblique view from LROC's NAC of Lichtenberg crater (31.854°N, 292.284°E). This image is approximately 22 km wide. North is to the bottom right of the image [NASA/GSFC/Arizona State University].

Published on 24 Sep 2013

Rümker E Impact Melt

Impact melt deposit in the crater Rümker E. NAC M1101573334L, image width is ~2 km  [NASA/GSFC/Arizona State University].

Published on 08 Mar 2013

Minty Fresh

A fresh young impact in the lunar highlands. LROC NAC M1104423389L, image width is 1.7 km [NASA/GSFC/Arizona State University].

Published on 06 Dec 2012

Boulder or Crater?

A roughly circular feature on the lunar surface. LROC NAC M175212953R, image is ~300 m across [NASA/GSFC/Arizona State University].

Published on 10 Sep 2012

Splash Mark

Meandering line of boulders at the bottom of Necho crater. Image width is 690 m, LROC NAC M167390131L. Sunlight is from left side [NASA/GSFC/Arizona State University]

Published on 31 Jul 2012