(Red Huber/Orlando Sentinel via AP)

A Space X Falcon9 rocket is readied for launch Friday, Feb. 17, 2017, at Launch Complex 39A at the Kennedy Space Center in Cape Canaveral, Fla. Saturday morning's planned launch will be SpaceX's first from Florida since a rocket explosion at another pad last summer. The first attempt, scrubbed Saturday with just 13 seconds before liftoff, was foiled by concerns over an anomaly discovered in the rocket's steering system. Better to wait a day.”

Thousands of guests had jammed the space centre to witness the comeback of 39A, last used in 2011 for the final space shuttle flight. Where there's nothing rare about the 5,500 pounds of cargo strapped in for the resupply mission Sunday, the pad it's taking off from has quite a backstory: Launch Complex 39A was the site that sent the first humans to the moon in the 1969 Apollo 11 mission. In fact, it served as a launch pad for many of the most famous missions in NASA's history — from the first missions to space that packed a human crew, to the decades-long space shuttle program that helped construct the orbiting station Saturday's rocket will be supplying. CAPE CANAVERAL, Fla. — A SpaceX rocket soared from NASA’s long-idled moonshot pad Sunday, sending up space station supplies from the exact spot where astronauts embarked on the lunar landings nearly a half-century ago. In a tweet Saturday, Musk said the company has already “retired” so much research and development risk on the crew Dragon capsule “that I feel very confident of 2018.”

As for the second-stage steering issue that cropped up Saturday, SpaceX hustled to replace an engine part before Sunday morning’s try.
SpaceX delays the launch of a Falcon 9 rocket from Kennedy Space Center in Florida due to a technical issue. The Falcon 9 will resupply the International Space Station.