NASA MOL

As a follow-up to this post, here is a drawing from 1968 showing a Manned Orbiting Laboratory meant for NASA use. Numerous “NASA MOLs” were envisioned (including designs which clustered numerous MOL-modules with a Skylab-type S-IVb space station), this one was specifically an astronomical variant. How similar the instruments in this NASA version were to those planned for the USAF versions is unclear.