Launch Complex 39 is a rocket launch site at the John F. Kennedy Space Center on Merritt Island in Florida, United States. The site and its collection of facilities were originally built as the Apollo
LC-39A (foreground) and LC-39B (background) on April 6, 2022
Complex Warning System – 1966
Apollo-Saturn 506 with Apollo 11 spacecraft being moved from the VAB to LC-39A (1969)
A restored crawler-transporter (2004)
STS-400
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STS-400 was the Space Shuttle contingency support flight that would have been launched using Space Shuttle Endeavour if a major problem occurred on Space Shuttle Atlantis during STS-125, the final Hub
Endeavour on standby at LC-39B, ready to rescue the crew of STS-125 if needed
The seven members of STS-125 would have been seated on the middeck for reentry
Atlantis (foreground) and Endeavour on LC-39A and LC-39B in 2008.
Endeavour would have grappled and held Atlantis