Game Idea--Capitals

[Bman]

What happens if a capital gets captured? Does your empire continue on so you can try to take it back? What happens if a capital gets glassed? What happens if enough capitals gets glassed so that no one can win the game? What happens if you take a capital and just before the enemy comes to reclaim it you scrap it!?

Just some questions, because it is quite easy to accidentally glass a planet in simultaneous combat.