SpaceX called off the planned launch of a Falcon 9 rocket from a historic launchpad in Florida seconds before liftoff on Saturday to investigate a potential problem with the steering system in the upper stage of the booster.
The flight, the first for the company from a launchpad at the Kennedy Space Center once used for NASA's space shuttle program, was rescheduled for 9:38 a.m. local time (1438 GMT) on Sunday. The rocket will carry a cargo ship bound for the International Space Station.
The problem concerned an issue with the steering system of the rocket's upper stage, SpaceX said.
"Standing down to investigate," Elon Musk, founder and chief executive of Space Exploration Technologies Corp, wrote on Twitter.
SpaceX has not flown from Florida in six months. Flights were suspended after a rocket exploded while being fueled ahead of a routine, pre-launch test at Cape Canaveral Air Force Station, located just south of Kennedy Space Center.rock