(THEATER) John Kaufmann shines when he doesn't know what's going to happen next. Starball, which he and Dan Dennis have performed in planetariums from Chicago to Spain, is a sparkling goulash of astronomy, music, and choreographed chaos. I once saw a version with a sing-along about a criminal with a 21-inch neck and a pool boy in a toy store—and those were the audience's ideas. (Smith Planetarium, Pacific Science Center, 200 Second Ave N, 352-1777. Fri–Sat at 10 pm, Sun at 8 pm, $12–$17.) BRENDAN KILEY