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File:ALSEP AS15-85-11468.jpg

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Summary

Description
English: Apollo 15's Lunar Ranging Retro Reflector (LRRR). Original Caption: 125:33:21 Dave took this cross-Sun from the south of the LRRR, showing the orientation gnomon and bubble level. The LRRR, reflects laser pulses back to the telescopes on Earth used to illuminate it. By measuring the two-way travel time between the telescope and the LRRR, experiments can determine the distance between the two to a few centimeters and address such issues as Einstein's Theory of General Relativity and the existence of a liquid lunar core. As of February 2005, the retroreflectors deployed on Apollos 11, 14, and 15 were still being used in conjunction with a dedicated facility at the MacDondald Observatory in Texas.
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Source
This image or video was catalogued by NASA Headquarters of the United States National Aeronautics and Space Administration (NASA) under Photo ID: [https://www.hq.nasa.gov/alsj/a15/AS15-85-11468HR.jpg AS15-85-11468].

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Author Dave Scott, NASA
Permission
(Reusing this file)
Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2007-08-01 23:16 Andy120290 904×909× (187620 bytes) Apollo 15's LRRR. {{PD-USGov-NASA}}

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Apollo 15 operations on the Lunar surface

copyright status

public domain

applies to jurisdiction: United States of America
determination method or standard: work of the federal government of the United States

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image/jpeg

checksum

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data size

785,801 byte

height

2,353 pixel

width

2,340 pixel

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Date/TimeThumbnailDimensionsUserComment
current18:08, 16 August 2010Thumbnail for version as of 18:08, 16 August 20102,340 × 2,353 (767 KB)Bubba73Higher resolution version
20:37, 16 June 2009Thumbnail for version as of 20:37, 16 June 2009904 × 909 (183 KB)File Upload Bot (Magnus Manske) {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|Apollo 15's LRRR.}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia]; transferred to Com

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