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Since "geography of Mars" literally means "the description of Earth of Mars", #TodayILearned a specific term has been created for it: Areography.

https://en.wikipedia.org/wiki/Areography

#TIL

No link preview in this post because the banner image for this article is a 48.5 MB 26,674x10,670px colorized map of Mars based on Viking orbiter images. 😅

You've been warned: https://upload.wikimedia.org/wikipedia/commons/0/02/Mars_Viking_MDIM21_1km_plus_poles.jpg

Why have they switched to the Greek name (Ares)?
@Khurram Wadee Because the Greek gods were there first? 🤷‍♂️
The convention seems to be to use the Roman names and so I would expect it to be Marsography but I'm only guessing.
@Khurram Wadee What convention? This term only appeared in the latter half of the 20th century while the planet name s much more ancient, I'm not surprised they wanted to honor the original name before it was replaced by the Romans.
All I'm saying is that all of the other planets are named after the Roman rather the Greek gods. That is a convention; there is no intrinsic or logical reason why they should be.
@Khurram Wadee Indeed, but the planets weren't named by the same people who had to come up with a new word for the geography of Mars, so I'm not surprised the convention changed.