When you invade a planet, you may use one of the advantages such as Mass Driver or Core Detonation to help win the ground battle. The screen tells you that if you use one of these, the "quality" of the planet will be reduced by some percent, usually from 20 to 50%. (The invasion screen also tells you that some of the planetary inprovements will be destroyed...that is clear so I'm not asking about that.) My question for tonight is, is there some way to restore that planet to its full quality? Does this happen automatically over a period of time? Do you have to use some tech to do it? Is the current quality of a planet indicated on some screen?
Thanks very much for your replies.