There might be angels in the outfield, but in the Space City, the Houston Astros have Dominicans in the stands. Dubbed the "Rally Nuns," the Dominican Sisters of Mary Immaculate Province, a growing congregation of Vietnamese consecrated women religious in Houston, became a viral sensation during the American League Championship Series in Houston in late October. The Astros won both games, helping them topple the Boston Red Sox to punch their ticket to the World Series.