The Atlas V booster and Centaur upper stage that will launch NASA's next Mars orbiter rolled off a ship this morning at a Cape Canaveral Air Force Station wharf, according to Local 6 news partner Florida Today.
The roughly 19-story rocket, when fully fully assembled, is scheduled to launch the Mars Atmosphere and Volatile EvolutioN mission, or MAVEN, on Nov. 18.
That's the opening of an official 20-day launch window, but mission managers say they have another 15 days available if needed.
The MAVEN spacecraft is undergoing preflight tests at Kennedy Space Center.
The rocket was delivered from Decatur, Ala., aboard United Launch Alliance's Mariner ship.