ULA Atlas V Booster Arrival for Boeing's Orbital Flight Test (OF

The first stage of the rocket that will launch Boeing's CST-100 Starliner spacecraft to the International Space Station on the company's uncrewed Orbital Flight Test arrives at the United Launch Alliance (ULA) Atlas Spaceflight Operations Center (ASOC) at Cape Canaveral Air Force Station in Florida on Dec. 7, 2018. The ULA Atlas V first stage booster was shipped aboard the company's Mariner cargo vessel from the company's manufacturing plant in Decatur, Alabama. It is the final piece of hardware that ULA needs to launch the first Boeing Starliner. Inside the ASOC, the booster will be inspected and checked out.