关于这张图
Exploration Ground Systems Manager Mike Bolger (left) and NASA Human Exploration and Operations Associate Administrator Kathy Lueders (right) visit Kennedy Space Center's Vehicle Assembly Building (VAB) in Florida on June 11, 2021. In the background, the core stage of NASA’s massive Space Launch System (SLS) rocket is visible in vertical position during stacking operations, prior to the core stage being moved and integrated with the twin solid rocket boosters atop the mobile launcher in High Bay 3 of the VAB. The 188,000-pound core stage, with its four RS-25 engines, will provide more than 2 m…
