English: Crews raise a United Launch Alliance Atlas V rocket to a vertical position at the Vertical Integration Facility at Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida on Wednesday, Feb. 21, 2024. After integration with the rocket’s Centaur upper stage and Boeing’s CST-100 Starliner capsule, the Atlas V will send two NASA astronauts to the International Space Station on the agency’s Boeing Crew Flight Test. The mission will test the end-to-end capabilities of Starliner and its system and, if successful, will pave the way for NASA’s certification ahead of regular missions to the space station as part of the agency’s Commercial Crew Program. Liftoff is targeted for no earlier than mid-April.