PIA14018: Boulder in Recht Crater
Target Name: Moon
Is a satellite of: Earth
Mission: Lunar Reconnaissance Orbiter (LRO)
Spacecraft: Lunar Reconnaissance Orbiter (LRO)
Instrument: Lunar Reconnaissance Orbiter Camera (WAC)
Product Size: 1000 x 1000 pixels (width x height)
Produced By: Arizona State University
Other Information: More details and images at LROC
Full-Res TIFF: PIA14018.tif (1.001 MB)
Full-Res JPEG: PIA14018.jpg (127.7 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

Inside the wall of Recht crater rests a 130 meter long boulder. Image resolution is 0.56 m/px and the incidence angle is 20.

Recht crater (~19 km in diameter) is located on the lunar farside, at 9.8N, 124E. The boulder is located on the northern half of Recht crater's interior wall and is 130 meters long, or about one and a half times as long as an American football field. Boulder fields on the Moon are common. Large boulder fields are usually part of an ejecta deposit surrounding the parent crater. It is also common for boulders to gather where blocks on a slope are dislodged from the regolith or rock outcrops in a process known as gravity-driven mass wasting. However, the boulder in today's Featured Image has no boulder trail, so it probably was emplaced at the time of the impact that created Recht crater. After the initial impact, the boulder fell as part of the impact ejecta and, as material on the wall of the crater settled, was partially covered with wall material.

Click here for larger image of PIA14018
Click on image for larger version
Recht crater is on the far side of the Moon, in the highlands. WAC monochrome 100 m/px mosaic

NASA's Goddard Space Flight Center built and manages the mission for the Exploration Systems Mission Directorate at NASA Headquarters in Washington. The Lunar Reconnaissance Orbiter Camera was designed to acquire data for landing site certification and to conduct polar illumination studies and global mapping. Operated by Arizona State University, LROC consists of a pair of narrow-angle cameras (NAC) and a single wide-angle camera (WAC). The mission is expected to return over 70 terabytes of image data.

Image Credit:
NASA/GSFC/Arizona State University

Image Addition Date:
2011-03-08