Featured Images

Aitken Crater Constellation Program Region of Interest

A lobate scarp in the mare basalts of Aitken crater on the lunar farside (arrows). Aitken crater is one of the fifty regions of interest in NASA’s Constellation Program. The smooth mare basalts that flooded the floor of Aitken crater...

Published on 12 Jan 2010

Mare Moscoviense Constellation Site

A very subtle mare-highlands boundary in Mare Moscoviense on the lunar farside, near the center of the Constellation Program region of interest. The generalized geologic contact between the mare and the highlands has been highlighted...

Published on 04 Jan 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

Illumination comparison of a mare crater

Same crater from two LROC NAC frames under very different lighting. On the left the Sun was midway to the horizon and on the right the Sun was high, approaching noon. Under lower Sun, surface roughness is quite evident; under higher sun...

Published on 20 Oct 2009

Where Moscoviense meets the Highlands

The edge of Mare Moscoviense. Image width is 1.4 km [NASA/GSFC/Arizona State University].

Published on 06 Oct 2009

Rima Ariadaeus - A Linear Rille

The linear rille Rima Ariadaeus is found on the nearside of the Moon, nestled between Mare Tranquillitatis and Mare Vaporum. Most linear rilles are believed to represent tectonic faulting and can be used to determine stratigraphic...

Published on 28 Sep 2009

Relative Timing of Geologic Events in Mare Frigoris

A mare-highlands boundary in northern Mare Frigoris. Image width is 1.8 km [NASA/GSFC/Arizona State University].

Published on 27 Jul 2009