Two options were presented: Apollo docking with Salyut/Soyuz or Soyuz with Skylab/Apollo. Caldwell Johnson was taken aback by the Soviets’ eagerness to immediately pursue the development of a universal docking mechanism.

The post Space Rocket History #448 – Apollo-Soyuz Test Project – Soyuz/Skylab & Apollo/Salyut first appeared on Space Rocket History Podcast.