If you were to stand on the floor of NASA’s Vehicle Assembly Building at the Kennedy Space Center in Florida and tilt your head up, this is the view that would greet you.
Originally, the VAB was built for Saturn V assembly and then for the Space Shuttle.
Now there are four levels of new work platforms that will accommodate the Space Launch System (SLS) rocket and the Orion Spacecraft for Exploration Mission 1. “The Ground Systems Development and Operations Program is overseeing upgrades and modifications to VAB High Bay 3, including installation of the new work platforms, to prepare for NASA’s journey to Mars,” says NASA.
NASA builds rockets vertically, as opposed to the Soviets/Russians, who build theirs horizontally. That’s why the VAB is a crazily tall building. The rockets need to be transported to the launchpad on a huge crawler so they stay upright. It’s a little insane when you stop and consider it.
Via Popular Science