Nine Merlin engines ignited and throttled up to nearly 2 million pounds of thrust Sunday during a brief hold-down firing of SpaceX’s Falcon 9 rocket, sending a plume of smoke out of the flame trench at Kennedy Space Center’s historic launch pad 39A as the company preps for a space station cargo mission next weekend.
SpaceX said Sunday that the first Falcon 9 rocket launch from pad 39A, a former shuttle-era complex at NASA’s Kennedy Space Center in Florida, is scheduled to send a Dragon supply ship to the International Space Station in mid-February, deferring a mission with an EchoStar communications satellite that was set to take off this month.
Investigators probing the Sept. 1 explosion of a SpaceX Falcon 9 rocket on its launch pad in Florida believe a high-pressure gas tank inside the launcher’s upper stage most likely burst due to the conditions of the helium loaded into it, a finding that could simplify fixes needed before the commercial booster can return to service.
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