关于这张图
S75-24007 (24 March 1975) --- The Saturn 1B space vehicle for the Apollo-Soyuz Test Project mission, with its launch umbilical tower, rides atop a huge crawler-transporter as it moves slowly away from the Vehicle Assembly Building on its 4.24-mile journey to Pad B, Launch Complex 39, at NASA's Kennedy Space Center. The ASTP vehicle is composed of a Saturn 1B (first) stage, a Saturn IVB (second) stage, and a payload consisting of a Command/Service Module and a Docking Module. The joint U.S.-USSR ASTP docking mission in Earth orbit is scheduled for July 1975.
