Featured Images

Ancient Impact Melt

Lobate margin of ancient impact melt flow within a nameless farside crater, 45.84° S, 227.32° E, NAC M1117380495LR [NASA/GSFC/Arizona State University].

Published on 28 Dec 2022

Kepler Crater Landslide

Mass movement of rocky debris down the inner crater wall and onto the floor of Kepler crater. Image width  3 kilometers, north is up, M114206456LR [NASA/GSFC/Arizona State University].

Published on 09 Oct 2020

Double Whammy

Twin craters formed by the simultaneous impact of two projectiles. NAC image M1229857067L,R [NASA/GSFC/Arizona State University].

Published on 18 Aug 2020

Station 6 - Apollo 17

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...

Published on 13 Dec 2013

Dark Ejecta

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].

Published on 31 Oct 2013

Impact!

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...

Published on 19 Mar 2013

Archimedes Rock Garden

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].

Published on 07 Feb 2013

Debris Flows in Kepler Crater

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...

Published on 06 Feb 2013

Meanders in Posidonius

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...

Published on 05 Feb 2013

Tres Amicis

Three impact craters (125-180 m diameter) that may have formed in a contemporaneous impact event. NAC image M106827539L [NASA/GSFC/Arizona State University].

Published on 04 Jan 2013

Up and Down / Back and Forth

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].

Published on 03 Jan 2013

Giant Flow of Impact Melt

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...

Published on 14 Aug 2012

Bulls-Eye Crater or Volcanic Vent?

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].

Published on 25 Jul 2012

Watch That First Step!

LROC oblique view of the giant scarp (cliff) Rupes Cauchy that cuts across 200 km of Mare Tranquillitatis. The scarp is 300 meters tall and Cauchy B crater is 6 km in diameter [NASA/GSFC/Arizona State University].

Published on 24 Jul 2012

River of Rock

A small section of an enormous, now frozen, river of impact melt that flowed down the southeastern flank of Tycho crater some 108 million years ago. NAC image M185940195RE [NASA/GSFC/Arizona State University].

Published on 20 Jun 2012

Mare Crisium: Failure then Success

Luna 24 landed on the northwestern rim of a 64 m diameter impact crater, on the volcanic plains of Mare Crisium. Enlargement of lander at lower left, NAC M174868307L [NASA/GSFC/Arizona State University].

Published on 16 Mar 2012

Lunokhod 1 Revisited

Lunokhod 1 rover in its final parking place (38.315°N, 324.992°E) on the surface of Mare Imbrium. The inset in the lower left shows an expanded view of the rover. LROC NAC image M175502049RE. [NASA/GSFC/Arizona State University].

Published on 14 Mar 2012

Erosional trough on crater wall

Erosional trough (400 m long x 100-200 m wide) on the eastern inner wall of the farside crater Moore F. Morphologically it resembles a martian sapping feature, suggested to form due to erosion by water flowing out of the subsurface....

Published on 24 Nov 2010

Luna 21 Lander

Luna 21 lander delivered the Lunokhod 2 rover to the floor of Le Monnier crater in January 1973, LROC NAC Image M122007650LE [NASA/GSFC/ Arizona State University].

Published on 19 Mar 2010

Wrinkle ridges of northwest Mare Imbrium.

A northeast-trending wrinkle ridge cuts across the plains of Mare Imbrium. The overall ridge is about 4.5 km wide. The contact between the ridge (right) and the surrounding mare basalt plains (left) runs diagonally up the image...

Published on 14 Dec 2009