The final chapter of a 30-year odyssey into the stars

Space · Published 17 October 2026 Swipe more like this →

In short: On a day with a 70 percent chance of failure, the space shuttle Atlantis defied the odds to complete its final voyage. This wasn't just a routine resupply; it was the closing curtain on three decades of engineering marvels that defined American space exploration.

The launch of STS-135 on July 8, 2011, served as the definitive conclusion to the space shuttle program. While the mission was a logistical necessity—delivering a stockpile of supplies and parts to the International Space Station (ISS)—it carried the immense weight of history. It marked the 33rd flight for the shuttle Atlantis and the 135th mission to the ISS, representing the culmination of a 30-year era of orbital flight.

The atmosphere on Florida’s Space Coast was charged with both tension and sentiment. Nearly a million spectators gathered to witness the liftoff, despite a daunting weather forecast that initially signaled a 70 percent "no-go" for the day. The mission nearly faced a last-minute delay at T-31 seconds due to a glitch regarding the gaseous oxygen vent arm. However, the experienced team at the Kennedy Space Center Launch Control Center resolved the issue quickly, allowing the three main engines and twin solid rocket boosters to ignite as the launch window neared its end.

For NASA leadership, the mission represented a successful transition. Launch Integration Manager Mike Moses characterized the program's end as a strategic hand-off: the shuttle had fulfilled its primary role of building and stocking the ISS, preparing it for the future. Only forty-eight hours following liftoff, the four experienced spacefarers—including Mission Specialists Rex Walheim and Sandy Magnus, Pilot Doug Hurley, and Commander Chris Ferguson—started their duties to guarantee a successful operational conclusion for the initiative.

July 8, 2011 Atlantis launches on mission STS-135, the final shuttle flight. July 10, 2011 The crew of Atlantis completes rendezvous and docking with the International Space Station.

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