The Houston Astros are a Major League Baseball team located in Houston, Texas. The Astros were established as the Houston Colt .45s in 1962. The current name was adopted three years later when they moved into the Astrodome, the world's first domed sports stadium. The name reflects Houston's role as the center of the U.S. Space Program. The Astros played against the Chicago White Sox in the 2005 World Series.