So, either Mars had a lot of water and some planetary change evaporated it off, or Mars was like it is today, and a one time event flooded the planet, until Mars eventually returned to it’s barren self.
A one time planetary flood? Sounds mythical, no?
I’d be looking for SUV’s on Mars myself.
I am not an expert, but what I have read is that due to Mar’s weaker gravitational force and limited atmosphere, any surface water escaped into space.
I am not an expert, but what I have read is that due to Mar’s weaker gravitational force and limited atmosphere, any surface water escaped into space.