Watch conditions at Kennedy Space Center during Tropical Storm Isaias

A SpaceX Falcon 9 rocket rumbled into the sky Wednesday from NASA’s Kennedy Space Center in Florida, flexing the rocket’s muscles and lofting a massive Intelsat satellite to orbit supporting wireless communications, television broadcasting and trans-Atlantic data relays.

For the third time in three weeks, SpaceX is preparing to launch a batch of satellites for the company’s Starlink Internet network from Florida’s Space Coast. Liftoff of a Falcon 9 rocket is set for Thursday afternoon from pad 39A at NASA’s Kennedy Space Center in Florida, weather permitting.

Two days after blasting off from NASA’s Kennedy Space Center in Florida, SpaceX’s refurbished Dragon supply ship arrived at the International Space Station on Monday with nearly 6,000 pounds of experiments and equipment. Grapple of Dragon by the station’s robot arm occurred at 9:52 a.m. EDT (1352 GMT).