The United States Air Force's 45th Space Wing oversaw the demolition, which leveled the landmark towers just after 7 a.m. EDT (1100 GMT). "We are getting ready to leap into the future".
The complex, expanded in 1997, was the only launch pad that could accommodate the Delta II Heavy, which would regularly launch accident-free, from Launch Complex 17 from 2003 till the complexs closure in 2011.
The demolitions comes about seven years after the complex hosted its last launch.
It was the starting point for many historic robotic missions like the pioneer probes that explored the outer solar system and the twin Martian rovers Spirit and Opportunity.
The almost 60-metre-tall towers came tumbling down after explosives were activated, sending them falling in opposite directions at the US Air Force base in Florida.
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"With 61 years of history and 325 launches, it's been a pretty incredible piece of the space community for many years", he explains.
For that reason, the launch complex's owners have made a decision to get rid of the towers to make room for something new: a new launch site for startup Moon Express, which was one of the finalists in Google's Lunar XPrize.
The Launch Compex 17's two pads was initially built for the Thor missiles in the 1950s, Popular Mechanics reports.
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