Brand new with questions : )

[zeep]

Hello everybody!
Im pretty much brand new to the game and have just a few questions.

1) Why does the comp build bsy stations? for the repair bonus? am I missing somthing.

2) Does the AI ever develop phased shields?

3)I fire missles at planets... lots of missles. They all seem to miss, even when im in range, Besides killing crewmen, how do I solve this?

4) just what do the fleet and ship bonuses apply to? do they both apply at the same time?

5) just how do I build a ringworld? multiple ships for all the plating?

6) what is this multiplayer site I keep hearing about?
Thanx.. and happy to be playing!
-zeep