26 July 2018
Aviation Week  (7/25) reports that United Launch Alliance (ULA) has completed work on its “first dual-engine Centaur upper stage for an Atlas V rocket, a vehicle configuration purchased by Boeing for upcoming CST-100 Starliner flight tests and crew rotation missions to the International Space Station.” (Image: United Launch Alliance Atlas V launches Orbital ATK Cygnus cargo craft to the ISS. Credit: NASA)
More Info (Aviation Week)