One of NASA’s two space shuttle crawler-transporters parked between the Vehicle Assembly Building (background) and Pad 39A. At six million pounds, it is the largest self-propelled vehicle ever built.
One of NASA’s two space shuttle crawler-transporters parked between the Vehicle Assembly Building (background) and Pad 39A. At six million pounds, it is the largest self-propelled vehicle ever built.
NextGen Spaceflight | News + Photography 
