What is there to say? The Earth is an astronomical body which I assume all readers are at least somewhat familiar with.

It was not named after anything, per se, but is in fact the inspiration for a number of nature figures and deities throughout myth which in turn inspire names for many minor planets. I believe that every language has a word for this planet, whether synonymous with "world" or with "dirt." In many belief systems, it is personified as a deity, such as Gaia to the Greeks.

The classical symbol for this planet is a circle filled with a cross, which represents the four cardinal directions, or the equator and prime meridian that we use to chart the world. It is represented in Unicode as U+1F728, by the symbol ūüú®.

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The Earth has one moon, which we usually just call Moon, or Luna if you're into Latin or science fiction. Not to be confused with the number of minor planets which are named after lunar deities. For psuedomoons, see Cruithne.

The classical symbol of the moon is usually a waning crescent (where the points are on the left), as seen from the Earth when the moon is partially illuminated by the Sun. Not that anyone asked, but I think the most aesthetically pleasing way to present this image is where the inward curve of the crescent is produced by another circle centered on the opposite edge of the first. Easier said than done, when it comes to my artistic skills.

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