Most of the Houston Astros stood at the top of the dugout steps and applauded Carlos Corporan's two-run double in the first inning. Lucas Harrell slapped his glove with gusto after his infielders turned double plays. Music thumped in the upbeat visiting clubhouse after a satisfying victory. These young Astros are trying to make a name for themselves, and they're having a great time. Corporan homered among his four hits and drove in four runs, Brandon Barnes had three hits and three RBIs, and the Astros fit comfortably into the role of a slugging American League squad Monday night with a 9-1 romp over the New York Yankees.