Forty years ago, Neil Armstrong and Buzz Aldrin walked on the surface of the moon for the first time ever.
The historic Apollo 11 Mission landed at the Sea of Tranquility, a large, dark basaltic lava flow
They returned to earth with samples of lunar rocks, sand, and dust
so scientists could search for clues to the origin of the moon and its geologic development
Since that time, microscopes have been greatly improved,
allowing us to see moon dust in ways that were not possible 40, 20 or even just a few years ago.
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