Engineers completed a final test of Starship's propulsion system with a so-called "spin prime" test Wednesday at the launch site in South Texas. Ground crews then rolled the ship back to a nearby hangar for engine inspections, touchups to its heat shield, and a handful of other chores to ready it for liftoff.

The time is coming for SpaceX's gargantuan Starship launch vehicle to take off once again from the company's South Texas headquarters.

The Federal Aviation Administration has closed its investigation into the twin explosions that ended SpaceX’s ninth Starship/Super Heavy test flight in late May, clearing the last hurdle the spacefaring company needs ahead of its next scheduled launch on Sunday.