Visualizing Moon Fragments from Seveneves

On the first page of the book, the moon explodes suddenly and without warning. Seven fragments remain suspended in the night sky where a complete world once existed. And that’s just the beginning. What follows is a countdown: as the fragments collide and multiply, scientists predict that Earth will eventually be bombarded by what they call "Hard Rain." The clock is ticking. This led me to wonder what that would actually look like?