The Houston Astros, founded in 1962 as the Houston Colt .45s, made history early by moving into the Astrodome, the world's first domed sports stadium, and later shifted to the American League West in 2013. After early playoff appearances in the 1980s and a World Series loss in 2005, the team underwent a dramatic revival following Jim Crane's $680 million purchase in 2011, which brought a sabermetrics-driven approach and stars like Jose Altuve. This new era produced a record seven consecutive ALCS appearances (2017–2023), four AL pennants, and two World Series titles—the controversial 2017 win over the Dodgers (tainted by a sign-stealing scandal) and the 2022 victory against the Phillies. The Astros hold unique distinctions as the only franchise to win pennants in both leagues and the only expansion-era team with an all-time winning record (5,096–5,040–5). They also clinched the AL West title seven times in eight years through 2024, cementing their status as a modern dynasty and the only team to win a postseason series in seven straight seasons.