The United Launch Alliance (ULA) Mariner cargo vessel arrives at Cape Canaveral Air Force Station in Florida on Dec. 7, 2018, carrying 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. The ULA Atlas V first stage booster was shipped 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. The booster will be transported to the Atlas Spaceflight Operations Center for receiving inspections and checkout.
Photographer NASA/Cory Huston
Date December 7, 2018