[TXnMA]

What I find interesting is the scorpion. Why should the two continents have the same celestial imagery?

Umm -- because the first thing that comes to mind when you view that part of the sky is a scorpion, with its curled tail and pincers?

[From many - one.]

Here, take a look:

Geoff's Photography - Scorpio, Mars and the Milky Way

http://home.iprimus.com.au/rsims/stars08.htm

Besides, the names and myths are also similar.