ULA delays Atlas 5 launch to study unexpected engine vibrations
Source: Spaceflight Now
Date Published: 06/10/2021
United Launch Alliance’s next Atlas 5 launch will carry Boeing’s Starliner crew capsule into orbit July 30 on its second unpiloted test fight, officials confirmed Thursday. An Atlas 5 rocket for the U.S. military previously scheduled for June 23 has been postponed as engineers analyze unexpected vibrations of a new upper stage engine nozzle on a mission last month.