Live coverage: Upgraded Falcon 9 rocket test-fired at pad 39A

An official weather outlook issued by U.S. Air Force meteorologists Thursday calls for partly cloudy skies on Florida’s Space Coast for liftoff of a SpaceX Falcon 9 rocket just after sunrise Sunday with a clandestine payload for the U.S. government’s intelligence agencies.

Powering into a pre-sunrise sky over Florida’s Space Coast on Friday, a SpaceX Falcon 9 rocket provided a memorable show as it climbed into sunlight, delivering a Dragon cargo craft to orbit on a trip to the International Space Station.

SpaceX and SES, owner of a 5.8-ton commercial telecom satellite poised for launch from Cape Canaveral on Wednesday, struck a deal to tweak the Falcon 9 rocket’s launch profile to give the SES 9 spacecraft a stronger push toward its operating post more than 22,000 miles above Earth.