Enlarge / Technicians inside United Launch Alliance's Vertical Integration Facility connect Boeing's Starliner spacecraft to the top of its Atlas V rocket Tuesday. (credit: United Launch Alliance) Ground teams on Florida's Space Coast hoisted Boeing's Starliner spacecraft atop its United Launch Alliance Atlas V rocket this week, putting all the pieces in place for liftoff next month with two veteran NASA astronauts on a test flight to the International Space Station. This will be the first time astronauts fly on Boeing's Starliner crew capsule, following two test flights without crew members in 2019 and 2022.