The Surprising Ways Mars is Hostile to Life

the upside-down φ in the background during the lego city ad is like seeing those images of Earth with the south pole upwards. I thought it was an あ for a second.
It makes me think how a space civilisation would probably come up with a writing system that doesn't discriminate between the orientation of characters, since there is no orientation reference frame in space.
Or the opposite, or the letters would have clear orientation marks so you can distinguish in which direction the text goes.