The Houston Astros are an American professional baseball team based in Houston, Texas. The Astros are members of the American League (AL) West division in Major League Baseball (MLB), having moved to the division in 2013 after spending their first 51 seasons in the National League (NL).
History
The Astros were established as the Houston Colt .45s and entered the National League in 1962 with the expansion New York Mets. The current name was adopted three years later, when they moved into the Astrodome, the worlds first domed sports stadium. The teams nickname reflects Houstons role as the control center of the U.S. space program.