“LCROSS will guide an empty Centaur rocket weighing two tons toward its target. The rocket will crash into the crater at 5,600 mph, creating a new crater – perhaps as large as 5 miles wide”
so we are not talking about an explosive bomb – we are talking about two tons of metal that will be crashed into the moon
put on your tin foil hat and read the article
“‘PLEASE BE INFORMED THAT THERE IS A SANTA CLAUS.'”