Would it be possible to dig far enough into the ice at the polar regions to sustain ourselves after an earth trauma bad enough we could not surface ?
If I built a death star over say Tatooine , then decided I wanted to destroy Earth , would I have to make the death star mobile ? Or would it be possible -LRB- assuming I could collect enough energy -RRB- to target and destroy Earth , unobstructed by innocent objects along the way ?