The Houston Astros are a professional baseball team based in Houston, Texas. They compete in Major League Baseball (MLB) as a member of the American League (AL) West division. Prior to 2013, they were part of the National League (NL) for 51 seasons. They are one of two major league teams in Texas, sharing their division with the Texas Rangers.
The 1914 Boston Braves won the World Series, becoming a historical reference point for the Astros' 2005 playoff qualification after being significantly under .500.
Warren C. Giles became the president of the National League in 1951.
In 1952, there was an attempt by a group in Houston to purchase the St. Louis Cardinals for $4.25 million.
In 1956, Don Larsen pitched a perfect game for the New York Yankees in the World Series, a remarkable achievement in baseball history.
The Continental League, a proposed rival to the existing MLB leagues, folded in August 1960.
The National League granted an expansion franchise to the Houston Sports Association on October 17, 1960.
On January 17, 1961, the Houston Sports Association purchased the minor league Houston Buffaloes.
In 1961, the team was named the Colt .45s, and the first team was formed largely through an expansion draft.
Several personnel from the Houston Buffaloes transitioned to the new major league franchise in 1961.
The era of the Houston Buffaloes, Houston's professional baseball club from 1888 to 1961, came to an end.
On April 10, 1962, the Colt .45s played their first game against the Chicago Cubs, with Harry Craft managing the team. Bob Aspromonte scored the team's first run. While they started strong with a three-game sweep, the team finished eighth in the National League.
The Houston Colt .45s were set to begin play in the National League in the 1962 season.
The Houston Colt .45s were established and joined the National League as an expansion team in 1962.
The Houston Colt .45s made their Major League Baseball debut in 1962. Their home uniforms featured a navy pistol with orange smoke forming the "C" in "Colts," while the road uniforms displayed the city name in navy with orange trim and a Texas flag patch.
The Astros' all-time record began to be tracked in 1962.
Major League Baseball arrived in Houston in 1962 with the establishment of the Houston Colt .45s.
Bill Giles was one of the founders of the Houston Colt .45s baseball team in 1962.
In 1963, future stars Jimmy Wynn, Rusty Staub, and Joe Morgan debuted with the Colt .45s, but the team finished ninth in the National League.
On December 1, 1964, the team officially changed its name from the Colt .45s to the Astros, reflecting Houston's role in the space program.
Harry Craft's time as the team's manager ended in 1964.
The year 1964 began with the loss of pitcher Jim Umbricht to cancer. He was honored posthumously in 1965 when the Colt .45s retired his number, 32.
In 1965, the Colt .45s retired Jim Umbricht's number, 32, following his passing in 1964.
In 1965, the Colt .45s were renamed the Astros and moved to the Astrodome. The team adopted new uniforms with a "shooting star" design, featuring "Astros" in navy with orange trim on the home uniforms and an updated cap with an orange star and "H."
The Astros moved into the Astrodome in 1965. Despite the new "Eighth Wonder of the World," the team continued to struggle on the field, finishing ninth.
In 1966, the Astrodome introduced Astroturf, an artificial playing surface, due to difficulties growing natural grass indoors.
The 1966 season began with promise for the Astros under new manager Grady Hatton, but injuries to key players like Jimmy Wynn and Joe Morgan derailed their success.
In 1967, Eddie Mathews joined the Astros and hit his 500th home run. Don Wilson pitched a no-hitter, and Jimmy Wynn set club records for home runs and RBIs. Despite these highlights, the Astros finished ninth.
Spec Richardson resumed his role as general manager for the Astros in 1967.
On April 15, 1968, the Astros and Mets played a 24-inning game featuring a memorable pitching duel between Don Wilson and Tom Seaver.
In 1969, the Astros moved to the NL West division.
Warren C. Giles concluded his term as the president of the National League in 1969.
The Astros underwent significant roster changes in 1969, including trades involving Rusty Staub and Donn Clendenon. Don Wilson pitched his second no-hitter. The team achieved a .500 record for the first time.
César Cedeño joined the Astros in 1970 and made an immediate impact. While the team's batting improved, pitching struggles led to a fourth-place finish.
In November 1971, the Astros traded key players Joe Morgan, Denis Menke, Jack Billingham, César Gerónimo, and Ed Armbrister to the Cincinnati Reds for Lee May, Tommy Helms, and Jimmy Stewart.
Between 1971 and 1975, the Oakland Athletics won five consecutive division titles, a feat the Astros matched between those years.
In 1971, the Astros had a slow start with declining pitching and hitting averages. Larry Dierker was selected for the All-Star Game but couldn't participate due to injury. César Cedeño led the team with 81 RBIs and the league with 40 doubles. J.R. Richard debuted in September.
In 1971, the Astros inverted their uniform colors, swapping navy for orange and orange for light blue. Player last names were added to jerseys.
In 1971, the Houston Astros inverted their uniform colors, switching navy to orange and orange to a lighter blue. Player last names were also added to the backs of jerseys.
The Oakland Athletics began their streak of four consecutive AL West division titles in 1971.
The Astros updated their uniforms in 1972, switching to polyester, adding elastic waistbands, and replacing buttons with zippers.
The Astros' uniform fabric changed to polyester in 1972. Elastic waistbands replaced belts, and jerseys switched to zippers.
The Astros achieved their first winning record in 1972.
In 1972, powered by strong performances from Lee May, Wynn, Rader, and Cedeño, the Astros achieved their first winning season with a record of 84-69. Cedeño also hit for the cycle, a first in Astros history.
Following the trade in 1971, the Reds, bolstered by the new acquisitions, became the National League Pennant winners in 1972, while the Astros faced criticism for the perceived imbalance of the trade.
Despite strong offensive performances from players like Lee May, Cesar Cedeño, and Bob Watson in 1973, injuries to the pitching staff led to an 82-80 record and a fourth-place finish.
Milo Hamilton called Hank Aaron's historic 715th home run in 1974.
Astros pitcher Don Wilson died on January 5, 1975, at age 29 from carbon monoxide asphyxiation.
The Astros retired Don Wilson's number 40 on April 13, 1975, following his death earlier that year.
In 1975, the Astros' rainbow uniforms, while panned by critics, were popular with the public and inspired similar designs at other levels of baseball.
Spec Richardson concluded his tenure as general manager in 1975.
The Astros had one of their worst seasons in 1975, finishing with a 64-97 record, the worst in franchise history until 2011. Manager Preston Gómez was fired and replaced by Bill Virdon.
The Astros introduced a drastically new uniform in 1975, featuring a solid block of yellow, orange, and red stripes from the chest down, a large dark blue star over the midsection, and player numbers on the pant legs.
The Astros introduced their rainbow uniforms in 1975, featuring stripes of yellow, orange, and red from the chest down, a dark blue star, and player numbers on both the jersey and pant leg.
The Astros' new uniforms were introduced in the 1975 season, featuring a unique and colorful design with stripes and a star. Although criticized, they were popular with fans.
The Oakland Athletics' run of four straight AL West division titles ended in 1975.
In 1976, under new manager Bill Virdon, the Astros improved significantly, finishing in third place with an 80-82 record, thanks to strong performances from players like César Cedeño, Bob Watson, and José Cruz.
Loel Passe retired from broadcasting in 1976.
In April 1977, the Astros introduced their first mascot, Chester Charge, a Texas cavalry soldier on a horse.
The Astros continued their improved performance in 1977, again finishing in third place with an 81-81 record.
In May 1979, John McMullen purchased the Astros. Ken Forsch threw a no-hitter against the Braves early in the season, giving the team a positive start.
Following Al Rosen and Bob Lillis's departures after the 1985 season, Dick Wagner, who had led the Reds to victory over the Astros in the 1979 NL West, became the Astros' new general manager.
By 1982, the Astros roster had undergone significant changes from the 1980 team, with only a few players remaining. This marked the start of a rebuilding phase for the team.
In 1980, the Astros made their first appearance in the playoffs.
In 1980, the Astros modified the rainbow uniforms, moving the rainbow design to the sleeves and initially using it for road games.
In 1980, the Astros retired their rainbow uniforms, which had been used both at home and on the road since their introduction in 1975.
In 1980, the Houston Astros faced the Philadelphia Phillies in the National League Championship Series (NLCS). The Phillies won the first game 3-1, despite the Astros taking an early lead. Ken Forsch pitched well for the Astros, but Greg Luzinski's two-run homerun proved decisive.
The 1980 season saw the return of Joe Morgan and a strong pitching staff. However, J.R. Richard suffered a stroke, ending his promising career, despite a strong start to the season.
The Astros debuted a cleaner uniform design in 1980, moving the rainbow pattern to the sleeves.
The Astros won the National League West division title in 1980.
A player strike in 1981 significantly impacted the MLB season. The Astros benefited from strong performances by Nolan Ryan, who threw his fifth no-hitter, and Bob Knepper. They reached the playoffs as winners of the second half of the season but lost to the Los Angeles Dodgers in the divisional series.
The Astros wore grey uniforms on the road prior to 1982
In 1982, the Astros started wearing the rainbow shoulder uniform for select home games. The uniform fabric also changed from light grey to cream, and a white version was introduced for home games.
In 1982, the Astros began a rebuilding process after falling out of contention. Bill Virdon was replaced by Bob Lillis as manager, and several player transactions were made, including trading Don Sutton and acquiring Kevin Bass. Bill Doran was also called up in September.
Before the 1983 season, the Astros made a key trade, acquiring Mike Scott from the Mets. Art Howe's injury led to positional changes, with Phil Garner moving to third, Ray Knight to first, and Bill Doran becoming the regular second baseman.
The Astros retired their orange cap in 1983.
The 1984 season saw a major setback with Dickie Thon's injury. However, the Astros also called up promising rookie Glenn Davis in September.
After the 1985 season, Hal Lanier was appointed manager of the Astros. Lanier introduced a "Whiteyball" style of play, focused on pitching, defense, and speed, resulting in a strong start to the season.
From 1985, the Astros held spring training at Osceola Heritage Park in Kissimmee, Florida.
In 1985, Mike Scott developed a split-finger fastball that would transform his career. Glenn Davis became a starting first baseman, adding power to the lineup. Joe Niekro was traded to the Yankees.
Milo Hamilton started broadcasting for the Astros in 1985.
Following the 1986 season, the Astros began another rebuilding phase, with key players like Nolan Ryan and José Cruz departing. The team also modified its uniforms, phasing out the full "rainbow" design.
Gene Elston concluded his broadcasting career with the Astros in 1986.
In 1986, the Astrodome hosted the All-Star Game, featuring several Astros players. The team continued its success, clinching the NL West title with a no-hitter by Mike Scott, who later won the Cy Young Award.
Phil Garner, who became the Astros' manager mid-season in 2004, was a player on the successful 1986 Astros team that won the division title.
The 1986 NLCS between the Astros and the New York Mets is remembered as a dramatic series. A key moment was Game 3, where the Astros lost 6-5 after Lenny Dykstra's two-run homerun in the 9th inning.
The Astros won the National League West for the second time in 1986.
The rainbow shoulder uniform became the Astros' primary look in 1987, replacing the original rainbow uniforms.
Craig Biggio made his debut with the Astros in June 1988. He would go on to become a key player and future Hall of Famer for the franchise, becoming the team's everyday catcher by 1990.
In 1989, the Astros brought back buttons and belts to their uniforms, retiring the pullover design.
In 1990, the Astros made a significant trade, acquiring Jeff Bagwell in exchange for Larry Andersen. Another key trade saw Glenn Davis depart for Baltimore in return for Curt Schilling, Pete Harnisch, and Steve Finley.
In 1990, Orbit, a lime-green alien, became the Houston Astros' mascot.
From 1991 to 1999, the Atlanta Braves made eight consecutive appearances in the National League Championship Series (NLCS), a feat highlighting a dominant era for the team.
In 1991, the Astros explored relocating to the Washington, D.C. area due to dissatisfaction with the Astrodome and challenges in securing a new stadium. The move was ultimately blocked by other National League owners.
Drayton McLane bought the Houston Astros in 1993, committing to keep the team in Houston. This marked a turning point in the franchise's history.
Following a change in ownership, the Astros changed their uniforms and team colors in 1993 to midnight blue and metallic gold, adopting a more "serious" image. The rainbow uniforms were retired, and the logo was updated with a stylized "flying" star.
In 1993, the Houston Astros changed their uniforms and team colors, moving away from the rainbow design to a more serious look with midnight blue and metallic gold. The logo was also updated with a "flying" star.
The Astros' time in the NL West division ended in 1993.
Following Drayton McLane's purchase of the team and the maturation of key players like Jeff Bagwell and Craig Biggio, the Astros started demonstrating consistent success. The 1994 season was disrupted by a player's strike.
In 1994, Bob Watson was hired as the general manager of the Houston Astros, becoming one of the first African Americans to hold this position in Major League Baseball.
In 1994, the Astros began playing in the NL Central division.
Bob Watson left his position as the Astros' general manager in 1995 to join the New York Yankees.
The Astros finished second in their division in 1995. This was part of a period where they consistently contended but fell short of winning the division.
In 1996, the Astros faced a potential move to Northern Virginia due to stadium issues, but ultimately remained in Houston after a positive stadium referendum.
For the third straight year the Astros finished second in their division in 1996, failing to qualify for the playoffs.
In 1996, Bob Watson, former Astros GM, contributed to the New York Yankees' World Series victory.
In 1997, the Astros tweaked their road uniforms, affixing the star next to the word "Houston." They also introduced midnight blue alternate jerseys with the flying star logo. Additionally, they reintroduced grey uniforms for road games for the first time since 1982.
The Astros began their period of dominance in the National League Central division, winning the title in 1997, 1998, 1999 and 2001.
The Astros claimed their first division title in several years in 1997, marking the beginning of a period of dominance in their division. They lost in the first round of the playoffs.
Between 1998 and 2001, the Astros won four division titles in five seasons, marking a period of consistent success for the franchise.
The 1998 season marked the first time the Astros achieved over 100 wins in a single season.
The 1998 season saw the Astros set a franchise record with 102 wins. They also secured another division title, ultimately losing to the San Diego Padres in the playoffs.
In 1999, after nearly a decade of service, the Astros retired Orbit as their mascot.
In 1999, the Astros won their third consecutive division title, a testament to their strong and consistent performance throughout this period. They once again failed to reach the next round of the playoffs after a series loss to the Atlanta Braves.
The Astros partnered with KTRH (740 AM) in 1999 for radio broadcasts.
The Astros won the National League Central title in 1999.
The Astros moved to their new stadium, Enron Field (later renamed Minute Maid Park), in 2000. The stadium featured a retractable roof and a more intimate setting than the Astrodome.
In 2000, the Astros moved from the Astrodome to Minute Maid Park (now Daikin Park).
In 2000, with the move to Minute Maid Park, the Astros introduced vintage-inspired uniforms featuring brick red, sand, and black, drawing inspiration from the ballpark's history as a railroad depot.
In 2000, coinciding with the Astros' move to Enron Field, Junction Jack, a rabbit, was introduced as the new mascot.
In 2001, the Astros won the National League Central, marking their last division title until 2017.
In 2001, the Mariners last won a playoff series before their 2022 success.
After Darryl Kile's death in 2002, the Astros unofficially retired his number 57.
Following Enron's bankruptcy, the Astros' stadium was renamed Minute Maid Park in 2002 after the Houston-based company acquired the naming rights.
In 2002, John Burkett, pitching for the Boston Red Sox, achieved the longest winning streak in the majors since the Astros' Yusei Kikuchi's nine game streak which started later that year in 2024.
In 2002, the Astros updated their uniforms, adding pinstripes to their home uniforms and switching to brick red alternate uniforms. They also introduced black caps with a red star and red caps with a sand star as alternates.
Roger Clemens retired from professional baseball after playing with the New York Yankees in 2003.
In 2004, the Houston Astros defeated the Atlanta Braves in a thrilling 18-inning NLDS Game 4, marked by Lance Berkman's grand slam, Brad Ausmus's game-tying home run, and Chris Burke's walk-off homer in the 18th. The Astros then advanced to and won the NLCS against the St. Louis Cardinals, securing a World Series berth.
Gerry Hunsicker's time as general manager of the Houston Astros concluded in 2004, after a period of building the team into a consistently strong organization.
From 2004 through 2008, Nolan Ryan served as a special assistant to the general manager of the Houston Astros.
In 2004, the Astros had a mixed season, starting with high expectations but facing challenges at the All-Star break. They recovered in the second half under new manager Phil Garner, secured a wild-card spot, won the Division Series, but lost the NLCS. Roger Clemens won his seventh Cy Young Award.
On January 9, 2005, Carlos Beltrán signed a contract with the New York Mets, departing from the Astros despite his valuable contributions during their playoff run in 2004.
The Astros had a rollercoaster 2005 season. Despite a poor start, they rallied to secure a wild card spot, making a remarkable turnaround after being 15 games under .500, a feat not seen since the 1914 Boston Braves.
The Astros reached the World Series for the first time in 2005, where they were swept by the Chicago White Sox.
During the 2006 offseason, the Astros signed Preston Wilson, moved Lance Berkman to first base, re-signed Roger Clemens, and traded for Aubrey Huff. Despite a late-season surge, the team missed the playoffs after losing the final game to the Atlanta Braves. Wilson was later released mid-season.
Top prospect Hunter Pence made his debut for the Astros on April 28, 2007, getting a hit and scoring a run.
In May 2007, the Astros endured a 10-game losing streak. Craig Biggio achieved his 3,000th career hit on June 28th, the same night Carlos Lee hit a walk-off grand slam. Biggio later announced his retirement in July and concluded his career at the end of the season.
In 2007, the Astros declined Jeff Bagwell's contract option, leading to his retirement. Roger Clemens and Andy Pettitte became free agents, and the Astros traded Willy Taveras, Taylor Buchholz, and Jason Hirsh to the Colorado Rockies for Jason Jennings and Miguel Asencio.
In February 2008, the Astros signed several players to one-year deals, including Brandon Backe, Ty Wigginton, Dave Borkowski, and Shawn Chacón. The starting rotation was set with Roy Oswalt and Brandon Backe leading, followed by Wandy Rodríguez, Chacón, and Chris Sampson. Kazuo Matsui began the season on a rehab assignment.
In 2008, Jim Crane attempted to purchase both the Chicago Cubs and, later, the Houston Astros from Drayton McLane, but both deals fell through.
Nolan Ryan finished his time as a special assistant to the general manager of the Houston Astros in 2008.
The Astros' performance declined in 2008, finishing with a record of 86-75.
The Astros' struggles continued in 2009, resulting in a 74-88 record and the firing of manager Cecil Cooper. Child admission was made free at the lowest point of the season.
In November 2010, Drayton McLane announced that he was putting the Houston Astros up for sale for estate planning purposes.
Brad Mills became the Astros' manager in 2010. The team struggled and traded key players like Roy Oswalt and Lance Berkman during the season, finishing with a 76-86 record.
Hunter Pence led the Houston Astros in home runs during the 2010 season.
Jim Crane, a Houston businessman, became the leading candidate to purchase the Astros in March 2011. Previous attempts by Crane to purchase the Cubs and Rangers, as well as a prior agreement with McLane that fell through, were also noted.
On July 30, 2011, the Astros traded outfielder Hunter Pence to the Philadelphia Phillies.
On November 15, 2011, the Houston Astros announced their agreement to move from the National League to the American League for the 2013 season. This move, part of a broader MLB realignment, resulted in a $70 million concession for the Astros and marked a significant shift for the franchise after over 50 years in the NL.
Drayton McLane was 75 years old as of November 2011.
In December 2011, Jeff Luhnow was named the new general manager of the Houston Astros.
The Astros' 1975 record of 64-97 stood as the worst in franchise history until 2011, indicating another challenging season for the team.
Businessman Jim Crane purchased the Houston Astros for $680 million in 2011.
Before 2012, the 2011 season held the record for the worst season in Astros history.
On November 2, 2012, the Astros unveiled a new uniform in anticipation of their 2013 American League debut. The new look featured the return of the classic navy and orange color scheme.
On November 6, 2012, the Houston Astros hired David Stearns as their new assistant general manager.
In 2012, the Astros lost their last Opening Day game before 2023, and the American League All-Star team, managed that year by Dusty Baker, lost their first All-Star Game since 2012 as well.
The Astros' tenure in the NL Central division ended in 2012.
In 2012, with the Astros joining the American League West, the Lone Star Series rivalry with the Texas Rangers shifted from interleague to intra-division.
In 2012, the Astros failed to make the playoffs and subsequently appointed Bo Porter as the manager for the upcoming 2013 season.
In 2012, the Astros ended their partnership with KTRH and veteran broadcaster Milo Hamilton retired.
In 2012, the Astros concluded their time in the National League with a 55-107 record, the worst in MLB, marking their worst season in franchise history up to that point.
During the 2012 season, Astros games were broadcast on television by Fox Sports Houston with some games also on KTXH.
2012 marked the Astros' last season in the National League before their move to the American League.
On March 31, 2013, the Astros played and won their first game as an American League team, defeating the Texas Rangers 8-2.
On September 27, 2013, CSN Houston, the television broadcaster for Astros games, filed for Chapter 11 bankruptcy.
The Astros played their first American League game against the Rangers on Sunday Night Baseball in 2013.
The Houston Astros officially joined the American League in 2013.
The Astros returned to their classic navy and orange color scheme in 2013, featuring the city and team names in block letters with orange trim. They also introduced an orange alternate uniform and navy uniforms with rainbow stripes.
Bo Porter served as the manager for the Houston Astros in 2013, the team's first season in the American League.
In 2013, the Houston Astros moved from the National League Central Division to the American League West Division as part of an MLB realignment.
In 2013, the Houston Astros debuted their new uniforms upon joining the American League.
In 2013, the Astros' flagship radio station became KBME, and Robert Ford and Steve Sparks replaced Dave Raymond and Brett Dolan as broadcasters.
In 2013, the Astros joined the AL West division as part of an MLB realignment.
In 2013, after a 13-year hiatus, Orbit returned as the Houston Astros mascot, coinciding with the team's move to the American League and rebranding.
Nolan Ryan returned to the Houston Astros front office as an assistant to the owner in February 2014.
In 2014, Sports Illustrated predicted the Astros would win the 2017 World Series.
The Astros finished the 2014 season with a 70-92 record, placing fourth in the AL West.
In June 2015, Carlos Correa joined the Astros and made a significant impact. Later that season, Mike Fiers pitched a no-hitter, and the team secured a playoff berth.
In 2015, both the Astros and Rangers reached the playoffs and were in a tight division race throughout much of the season.
In 2015, the Astros showed great promise, performing well and raising expectations for the following season.
The Astros began a period of sustained success in 2015, becoming one of MLB's dominant teams.
In 2015 the Astros stopped wearing all orange caps with the home uniform
In the 2016-2017 offseason, Tal's Hill was removed from Minute Maid Park, and the center field wall was moved in.
Up until 2016, the Astros conducted spring training at Osceola Heritage Park.
The 2016 season was the last time Carlos Correa played as the starting shortstop for the Astros before his departure and subsequent return in 2022.
In 2016, the Astros replaced the "H" star on their navy uniforms with "Astros" in orange.
In 2016, the Astros missed the ALCS marking the last time before 2024 that the team didn't reach that stage in the postseason.
During the 2016 season, the Astros struggled against their division rivals, the Texas Rangers, finishing with a 4-15 record against them.
Despite a strong showing mid-season, the Astros finished 2016 with an 84-78 record, missing the playoffs.
By June 9, 2017, the Astros boasted a 41-16 record, marking the best start in the franchise's 55-year history.
On November 3, 2017, the city of Houston held a parade to celebrate the Astros' World Series victory, with an estimated 750,000 people in attendance.
On November 16, 2017, Jose Altuve was named the American League Most Valuable Player following a stellar season, culminating in a World Series championship with the Astros.
The Astros won their first World Series championship in 2017, defeating the Los Angeles Dodgers, though the victory was marred by a sign-stealing scandal.
The center field wall at Minute Maid Park was moved in during the 2016-2017 offseason.
In 2017, the Astros began holding their spring training at The Ballpark of the Palm Beaches in West Palm Beach, Florida, sharing the facility with the Washington Nationals.
The 2017 World Series was won by the Astros against the Dodgers in 7 games. This victory was later tainted by controversy over a sign-stealing scheme.
In 2017, the Astros won their first World Series championship, defeating the Los Angeles Dodgers. This also marked their first division title in the American League West and their first overall since 2001, becoming the first team to win three different divisions. They also surpassed 100 wins for the second time in franchise history.
In 2017, the Astros won the World Series against the Dodgers, a victory later marred by the revelation of a sign-stealing scandal.
In 2017, the Astros acquired Justin Verlander, who played a key role in their playoff run and eventual World Series victory.
2017 marked Yuli Gurriel's first season with the Astros. It was also his last as their everyday first baseman before 2023.
On September 26, 2018, the Houston Astros clinched their second consecutive AL West division title thanks to a Seattle Mariners victory over the Oakland A's.
On September 29, 2018, the Astros finished the regular season with a 103-59 record, setting a new franchise record for wins. They achieved this by sweeping a double-header against the Baltimore Orioles.
In 2018, the Astros stopped pairing their navy alternate uniforms with an orange cap with a navy brim.
The 2018 sign-stealing scandal had far-reaching consequences, leading to dismissals and investigations beyond the Astros organization.
On January 26, 2019, the Houston Astros revealed their plans for a team Hall of Fame, including details about the inaugural class of inductees, an orange jacket, and renderings for each inductee.
On July 31, 2019, the Houston Astros traded for veteran starting pitcher and Cy Young Award winner Zack Greinke to strengthen their starting rotation.
On November 12, 2019, The Athletic published an article detailing allegations of the Astros using cameras to steal signs during the 2017 and 2018 seasons. This sparked a major scandal and an MLB investigation.
In 2019, the Astros reached their third World Series appearance after Jose Altuve's walk-off home run in Game 6 of the ALCS against the New York Yankees. However, they lost the series to the Washington Nationals in seven games.
The Astros lost the 2019 World Series, a series where, similar to their 2023 ALCS loss, the away team won every game.
The Astros appeared in the World Series in 2019, facing the Washington Nationals.
On January 13, 2020, MLB released the findings of their investigation, confirming that the Astros had used cameras to steal signs during the 2017 and 2018 seasons. No evidence of sign-stealing was found for the 2019 season.
On January 29, 2020, the Astros hired Dusty Baker as their new manager to replace A.J. Hinch.
In 2020, following the MLB investigation, Astros manager A.J. Hinch and general manager Jeff Luhnow were fired. The team was also fined $5 million and lost their top two draft picks in the 2020 and 2021 MLB drafts.
In 2020, the MLB season was shortened to 60 games due to the COVID-19 pandemic. The Astros finished with a losing record but still made the playoffs.
As part of the penalties for the sign-stealing scandal, the Astros also lost their top two draft picks in the 2021 MLB Draft.
The 2021 Houston Astros season marked the return of fans after the sign-stealing scandal. Despite losing key players, they achieved a 55-36 record by the All-Star break. On September 30, 2021, they clinched their fourth AL West title in five seasons. Yuli Gurriel won the batting title, and the team reached their fifth consecutive ALCS, a record matched by only a few teams. They won the AL pennant but lost the World Series to the Braves.
The Astros reached the World Series in 2021, playing against the Atlanta Braves.
On November 2, 2022, during Game 4 of the World Series against the Phillies, the Astros pitched a combined no-hitter, a historic first in postseason history and only the second in World Series history.
In 2022, the Mariners returned to the playoffs, winning their first series since 2001, and faced the Astros in the ALDS, which the Astros won.
In 2022, the Astros won their second World Series title, defeating the Philadelphia Phillies.
In 2022, the Astros introduced "City Connect" uniforms inspired by Houston's "Space City" nickname and incorporating elements from the 1970s "Tequila Sunrise" uniforms.
During the 2022-23 offseason, Dusty Baker's managerial contract was renewed, while general manager James Click left the team after contract negotiations failed.
In February 2023, Dana Brown was appointed as the new general manager of the Houston Astros, marking a significant change in the team's leadership.
On October 25, 2023, Dusty Baker announced his retirement from managing, concluding a long and successful career.
On November 13, 2023, Joe Espada was appointed as the 25th manager in Astros history, succeeding Dusty Baker.
In 2023, both teams made the playoffs and the Astros won the division title based on head-to-head record. The teams then faced each other in the ALCS for the first time.
The 2023 Astros season had a mixed start, snapping a long Opening Day winning streak. They saw changes in their roster, with Yuli Gurriel's departure and José Abreu's arrival. Despite reaching the ALCS for a record seventh consecutive time, they ultimately lost to the Rangers in a series where the away team won every game.
On May 13, 2024, Jenny Cavnar and Julia Morales made history as the first all-female broadcast team to call a Major League Baseball game on television.
The Astros announced on September 22, 2024, that they would wear their "Space City" uniforms for the final time and receive new "City Connect" uniforms in 2025.
On December 13, 2024, the Astros updated their roster, coaches, and NRIs.
The Astros clinched the AL West division title for the seventh time in eight years in 2024, becoming the first team to win the division four straight times since the 1971–1975 Oakland Athletics.
The Astros reached 5,000 wins in 2024 and hold an all-time winning record as an expansion team.