Here's one of the issues/mechanics I'd like to discuss as I'm still trying to figure this game out.
So, I selected a new planet. As always with this game, had to exercise patience and let it do it's thing. With the help of 'inventory items' I managed to somewhat stabilize the planet (I think). Anyway, I had progressed to a stage where life was taking hold. Bacteria was growing and evolving. I was happy and so left it to go do other tasks. When I came back, I had a 'GAME OVER, THE PLANET WAS DESTROYED' screen.
How and why did the planet get DESTROYED!? Considering you can select and play with a completely chaotic world that will never contain life and/or you can develop and destroy life on a whim, like adding disasters etc.
I suggest that even if life thrives and then dies, you should be able to continue playing, even if the planet is useless and then just back out and choose another planet if you want.