Videos: Previewing SpaceX’s eighth International Space Station resupply launch

United Launch Alliance’s Atlas 5 rocket, modified for crewed launches, rolled out of the Vertical Integration Facility Wednesday for the 1,800-foot trek to pad 41 in preparation for liftoff with Boeing’s Starliner crew capsule on an unpiloted mission to the International Space Station.

Splashdown occurred at 3:29 a.m. EDT (0729 UTC). In an unusual post-splashdown statement NASA said that all four crew members were transported “to a local medical facility for additional evaluation,” but didn’t provide any additional information.

This video replay shows the liftoff of SpaceX’s Falcon Heavy rocket from the Kennedy Space Center in Florida with 5.1 million pounds of thrust, followed by the nearby landing of the launcher’s twin side boosters nine minutes later. The rocket’s center core missed a landing attempt on SpaceX’s offshore drone ship.