Hi everyone. I'm looking for some help explaining why the LCROSS mission is perfectly safe. If you don't know what I'm talking about you can find an article http://www.siliconvalley.com/ci_12590357" [Broken] helpful (post #11). What I am basically looking for is a way to explain to a person who doesn't know that much about physics why there is nothing to worry about for this mission. If any of this is wrong, please correct me. PS. This is my first post here so be nice.