The starship Exp 1 is headed for D36, a planet that none of the crew has been to before.
“Somehow, they removed billions of asteroids. If they hadn’t, Exp One would have smashed into them.”
I blinked, astonished. “Why didn’t you notice this before?”
“Because it never occurred to me that anyone would have enough power to push that much mass. I didn’t even think about looking for it.”