Hi. (Not sure whether this should go in the "science fiction" or "real science" section, since while it's about something often featured in science fiction, I'm asking about real science.) We've all (well, perhaps not literally _all_, but you get the point) seen those movies where they blow up planets -- Star Wars, etc. But what'd happen if one could do that for real? If one had a way to generate an enormous amount of energy in a beam form and shoot an Earth-like planet with it -- with enough to blow it up? What would the explosion actually look like?