50 yrs of Moon landing: Let's not forget, or forsake, the lessons of past

“How about that package out of your sleeve? Get that?” is certainly not the most famous phrase uttered by a human while on the Moon. And the items nestled in a small packet that astronaut Buzz Aldrin had stowed in the pocket just below the shoulder of his extravehicular mobility unit were certainly not mission critical. They were sentimental objects, intended to be left on the Moon purely for symbolic and commemorative purposes.

Apollo 15 astronauts David R. Scott and James B. Irwin left a commemorative plaque on the Moon in memory of 14 NASA astronauts and USSR cosmonauts. The tiny, man-like object represents the figure of a fallen astronaut/cosmonaut. NASAMore than one hundred sites

You may be surprised to learn that a partial catalog of human-made objects on the Moon fills more than 20 single-spaced pages. There are more than a hundred sites on the Moon with evidence of human activity. The sites contain materials from the European Space Agency, Japan, India, Russia, China and the United States. Not only do these sites contain ongoing experiments, they hold invaluable data. For example, engineers are hoping to examine these materials to determine how they have fared after continuous exposure to the elevated radiation levels on the Moon. Along with scientific equipment, robotic landers and other objects left behind to lighten the load for the return home, there are a number of memorial and tributary items.
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