File:Atlas V Launch Vehicle Diagram.png - Wikipedia
NASA completes manufacturing of SLS Stage Adapter Structural Test Article - SpaceFlight Insider
NASA Completes Weld of SLS Rocket Adapter for First Artemis Launch with Crew
STP-S26 (Space Test Program-S26)
NASA Completes Test Version of SLS Launch Vehicle Stage Adapter | NASA
Space Launch System Launch Vehicle Stage Adapter (LVSA) | NASA
ULA on Twitter: "The #AtlasV Starliner builds on our solid history of success and incorporates new technologies designed for crew safety. Unique to #Starliner are the dual-engine Centaur, launch vehicle adapter and