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The Apollo 15 Lunar Laser Ranging RetroReflector
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The Apollo 15 Lunar Laser Ranging RetroReflector

November 29, 2012
The close-up here of the Apollo 15 landing site (26.1°N 3.6°E) is a portion of one of several LROC narrow angle camera (NAC) images that show the site. Although near the edge of the NAC image M111578606LE, this close-up (about 391 meters across, at 52 cm/pixel) shows many pieces of hardware left on the surface by the Apollo 15 astronauts, including of interest here the Apollo 15 lunar Laser Ranging RetroReflector (LRRR) array. It was placed on the Moon by astronaut David Scott on 1971 July 31. A photograph of a portion of the LRRR taken by Scott is shown below. The Apollo 15 array is one of four usable such arrays on the Moon. The others are at the Apollo 11 and Apollo 14 sites, and on the Lunokhod 2 rover. Credit: NASA/D. Scott