4K Video: The launch of Crew 4 as seen from the press site

A Falcon 9 rocket and Dragon supply ship, primarily using previously-flown hardware, are scheduled for liftoff before dawn Friday at Cape Canaveral on SpaceX’s 15th cargo launch to the International Space Station under contract to NASA.

The U.S. Air Force on Monday certified the latest version of SpaceX’s Falcon 9 rocket, featuring higher-thrust engines, enlarged fuel tanks and a super-chilled propellant mixture, for launches of the military’s most valuable satellites.

SpaceX debuted a more reusable, higher-thrust model of the Falcon 9 rocket Friday, hauling Bangladesh’s first communications satellite into orbit from Florida’s Space Coast.