Don't you hate it when... Your trying to decide what planet to put your Economy Capital on, so you go to the charts and stats screen an look for a fairly good quality planet that is already producing a good income. You find a likey candidate and double click it. You are wisked away to the "planet surface" screen, and decide it's as good as anyother planet to build the capital on. It isn't until a couple of turns later when you get attacked by your neighbor that that planet was sticking way out into enemy territory. BAD CHOICE.
The point being, is that there is very little spacial awareness in some areas of the game. You can navigate through whole sections of the game interface and never know where you are in space. I've taken to renaming my planets to reflect the prioity and location. For example, I will name a planet "LAB 12-07-2" to denote that it is a research heavy planet in sector 12-07, and that it is the second one in that sector.
This could all be solved with a mini-map that stays in the view when you are on these screens. Alternatly, double clicking on the name of a planet in the stats screen could dump you to an external view of the planet, instead of the planets surface.