STS 68 (NASA) The Space Transportation System (STS) mission STS-68, launched by NASA in September 1994, was the seventh flight of Space Shuttle Columbia. This mission, also known as the Neurolab Mission, was dedicated to researching and understanding human neurophysiology in microgravity conditions. The primary focus of the mission was to study the effects of space travel on the human nervous system, with a crew that included astronauts from the United States, Germany, France, and Russia. This ten-day mission also featured several spacewalks for the installation, maintenance, and retrieval of various scientific equipment. The STS-68 mission marked a significant step in NASA's ongoing research to understand the effects of long-duration space travel on astronaut health.