STS-135: The final space shuttle landing

The launch of SpaceX’s next 60 Starlink satellites will wait for better weather and sea conditions after currents were too strong for the company’s rocket landing platform to hold position in the Atlantic Ocean for a launch attempt Thursday.

Nine Merlin main engines on a SpaceX Falcon 9 rocket ignited at 12 p.m. EDT (1600 GMT) Friday, April 17, during a hold-down test-firing on launch pad 39A at NASA’s Kennedy Space Center in Florida.

Hurricane Matthew slammed NASA’s Kennedy Space Center, home to multiple launch pads and spacecraft assembly facilities, with wind gusts of more than 100 mph early Friday, but there were no immediate reports of significant damage at the spaceport as the storm passed just offshore.