United Launch Alliance’s next-generation Vulcan rocket will lift off from the company’s existing Atlas 5 launch facilities in Florida and California, according to the company’s Vulcan program manager.

The launch continues SpaceX’s advancement of the rocket, which is key not only to its ambitions, but also to NASA’s Artemis program. Liftoff from Starbase is set for 7 a.m. CDT (1200 UTC), the start of a 30-minute launch window.

Boeing’s Starliner crew capsule accomplished an early at White Sands Space Harbor in New Mexico at 7:58 a.m. EST (5:58 a.m. MST; 1258 GMT) Sunday to conclude an abbreviated two-day unpiloted test flight after a timing error on the spacecraft shortly after launch prevented it from linking up with the International Space Station as planned.