I just bought this thanks to the Steam sale and holy cow what a deep game. I've just scratched the surface and have tons of learning to do but I can already sense there's a huge universe to get lost in. I always compare games of this type to my favorite game of all time, Starflight, and this seems to be a first person take on that experience. I just wish there were more hours in the day so I didn't have to think about, I dunno, feeding myself.
Also, I've done a tiny bit of trading. Is there anywhere in the UI that tells you how much you bought goods for or do I need to keep pen and paper next to the computer? Maybe I've been spoiled by Space Rangers, which is another beautiful game.
EDIT: So I've played a little more, buying a laser. I figured out how to install it but was getting frustrated because I couldn't figure out how the dickens to actually FIRE the darn thing. Turns out you can only fire it from the rear view because it's mounted on the rear of the ship. I only found this out after scouring the web for a long time. So it's not the most user friendly of games but barring too many more issues like this it may grow on me more. Looks like I won't be engaging in combat any time soon. How the hell would that work? Ah, so much to learn...
So its probably a turret. You can set turrets to automatically fire at enemy ships by clicking the autpilot, and then command buttons for your ship. Selecting commands for combat and then turrets controls will allow you to focus on combat using your 'Main' weapons (forward view) and the rear turret will go after anything behind you.