Knock moon out of orbit

“Now you're kidding. I'm a lifer; why wouldn't I? When this thing is finished, nothing anybody anywhere can field against it will even scratch the finish. Running a gun that will pop Star Destroyers like soap bubbles, maybe even knock a moon out of orbit-what kind of gunner would pass that up?" He grinned. "Bigger is better."

 "I hear security will be tight. No leaves once you sign on until after the station becomes operational.”

***

Star Wars: Death Star Part 1 Chapter 13