I had a happy "perfect" planet near the enemy's planets - I made sure it was happy because I was afraid it would flip. And it just did - so morale by itself doesn't seem to help. I am not sure what else to build or do to stave off flipping. Also, there was no big flashing red light to warn me that the planet was liable to flip soon. Rage-inducing! What listing do I need to look at to make sure my planets are not vulnerable aside from morale?