&gt; <i>Relative velocities are going to be enormous without even trying, so it doesn&#x27;t matter where you hit it - the energy will have to go somewhere.</i><p>With so much energy, it really doesn&#x27;t matter? I imagine it would look like shooting a bullet through cardboard - the latter gains a hole, but otherwise doesn&#x27;t even notice. Energy generally stays in the bullet that continues its flight.