WASHINGTON (AP) - Republican presidential candidate Newt Gingrich wants to create a lunar colony that he says could become a U.S. state. There's his grand research plan to figure out what makes the human brain tick. And he's warned about electromagnetic pulse attacks leaving America without electricity. To some people, these ideas sound like science fiction. But mostly they are not. Several science policy experts say the former House speaker's ideas are based in mainstream science. But somehow, Gingrich manages to make them sound way out there, taking them first a small step and then a giant leap further than...