I got sol after the inhabitants of the third rock sent an inappropriate unsolicited pic to me. they destroyed themselves and it's a tomb world with roaches on it. i built an arc furnace on mercury. now i can't terraform sol III because of the roaches until i get the correct tech and colonize it, they are presapients. but i can terraform mercury. i need it as a fortress world as my naval cap is really eating my energy at the moment. but if i turn it into an ocean world, will that remove the arc furnace?