Featured Images

Oval Crater

A bolide impacting into the sloping wall of Harvey crater formed an oval, rather than circular crater. NAC M191567120, image width 1.32 km [NASA/GSFC/Arizona State University].

Published on 20 Jun 2013

Complicated Crater

Impact melt, boulders, and mass wasting - oh my! NAC M190007628LR, image width 1 km [NASA/GSFC/Arizona State University].

Published on 19 Jun 2013

Ka-Pow!

High-reflectance ejecta and low-reflectance impact melt streamers surround this fresh impact crater. NAC M189994606LR, image width 2.25 km [NASA/GSFC/Arizona State University].

Published on 18 Jun 2013

Messy Crater

Fresh impact crater morphology can be messy! NAC M189978900LR, image width 708 m [NASA/GSFC/Arizona State University].

Published on 09 May 2013

Boulder Origin?

Blocks litter the interior floor of an impact crater. NAC M187357438LR, image width 1.81 km [NASA/GSFC/Arizona State University].

Published on 08 May 2013

Boulder Tales

Boulders >1 m across, and a few trails, surround the base of a mountain in the Schrödinger central peak ring. Boulder in lower left is ~55 m across, NAC M187340587LR, image width 732 m, mountain base is beyond the frame to the lower...

Published on 07 May 2013

Crater Debris

Evidence of erosion and mass-wasting abound in lunar craters! Crater rim at the bottom of the image, crater floor at upper left, NAC M18731958LR, image width ~810 m [NASA/GSFC/Arizona State University].

Published on 12 Apr 2013

Squished Crater

A lobate scarp cuts across and deforms an ancient impact scar on the floor of Seares crater. NAC M187315000LR, image width 1.95 km [NASA/GSFC/Arizona State University].

Published on 11 Apr 2013

Rim Slumping

Faulting of a crater rim. Downhill to lower right, NAC M187307653, image width is ~1.9 km [NASA/GSFC/Arizona State University].

Published on 10 Apr 2013

Messy Melt

Unlike some melt ponds, this melt pond does not look very smooth! NAC M182116507LR, image width 910 m [NASA/GSFC/Arizona State University].

Published on 31 Jan 2013

Boulder Fields

Boulders of various sizes (a few meters up to ~20 meters across) scattered across the lunar surface. From where do the boulders originate? NAC M170605553LR, image width 510 m [NASA/GSFC/Arizona State University].

Published on 30 Jan 2013

Clam Shell

An oblique impact crater formed on the wall of Lalande C crater. Downslope toward lower right, north is down, NAC M170606751LR, image width 600 m [NASA/GSFC/Arizona State University].

Published on 29 Jan 2013

Channels And Fractures

Stratigraphic relationships within impact melt deposits may be discovered with diligent observation! NAC M185971152L, image width ~1.8 km [NASA/GSFC/Arizona State University].

Published on 17 Jan 2013

Melt Overlap

Two lobes of impact melt overlapped before solidifying against the crater wall. NAC M185964003L, image width is ~1.8 km [NASA/GSFC/Arizona State University].

Published on 16 Jan 2013

Really Wrinkled

A wrinkle ridge in Mare Frigoris deformed the mare. NAC M185963754R, image width is ~1.75 km [NASA/GSFC/Arizona State University].

Published on 15 Jan 2013

How Recent?

Granular debris flows cascade down the wall of a young crater. Geologically these are young features - but how young? NAC M185961505L, downslope to lower right, north is down, image width ~696 m [NASA/GSFC/Arizona State University].

Published on 18 Oct 2012

Bench Crater

A beautiful bench crater formed in melt trapped on a crater wall terrace. NAC M185961318R, image width 520 m [NASA/GSFC/Arizona State University].

Published on 17 Oct 2012

Winding Channel of Melt

Impact melt channel winding its way down the crater wall on its descent to the floor. NAC M185956855L, image width 2.2 km, downslope to upper left [NASA/GSFC/Arizona State University].

Published on 16 Oct 2012

Rippled Pond

A melt pool on Tycho's northeastern wall has a rippled, somewhat wrinkly texture. Why might the surface look this way? NAC M185947368R, image width ~792 m [NASA/GSFC/Arizona State University].

Published on 13 Sep 2012

Anaxagoras Exterior Melt

Exterior impact melt ponded to the east of Anaxagoras crater. NAC M185949707L, image width ~1.8 km [NASA/GSFC/Arizona State University].

Published on 12 Sep 2012