posted on Sep, 30 2009 @ 10:32 AM
We have a name for our moon -- it's "the Moon" (with a capital "M"). "The Moon" is a proper noun and the official name. The word "moon"
(with a lower-case "m") refers to planets' natural satellites.
The proper noun "Moon" was used for centuries as the name of our moon way before humans discovered that other moons do exist, which was in
the 1600s. That's when Galileo discovered the four main moons of Jupiter. It wasn't until then that people used the word "moon" to describe
other natural satellites.
Therefore the proper name "Moon" came before the general term "moon".
Some people refer to it as "Luna", but that is not the official name recognized by the International Astronomical Union (IAU), which is the
body that officially names celestial objects.
[edit on 9/30/2009 by Soylent Green Is People]