Technically, there is nothing inherent in the word “myth” that requires it to be false or not true. The myth of Odysseus is a myth even if every word about him were (somehow) true
The same may be said of our scientific myth of the solar system as it is presented to school children, and the public. The most revealing mythic element in this presentation is the ubiquitous depiction of the planets on a compressed distance scale, so that they are bunched together. When you say "solar system" this is how people will think of it, never minding the justifications for these depictions in the name of expediency. How can this image be rectified with the actual observation of the planets by ones own eyes in the night sky? Only by contortions which are absent from the minds of the unwashed, who accept these depictions purely as myth.
I’ve studied more Latin than Greek, but I don’t believe that’s true.
Liddell and Scott give:
mythologia (in Greek letters): romance, fiction, legend, story-telling