In the 1954 World Series, Willie Mays of the New York Giants made what many consider the greatest catch in baseball history on a long fly ball to straightaway center-field hit by Vic Wertz of the Cleveland Indians. Broadcaster Bob Costas talked about the catch for the Ken Burns documentary series Baseball: “It was more than just a great catch. It was a catch no one had ever seen before ... it was a play that until that point was outside the realm of possibility in baseball.” Mays in that moment thus expanded baseball into previously nonexistent territory, much like the universe expands—and not into anything, for there was nothing there before.