NASA Astronaut Group 9 was a group of 19 NASA astronauts announced on May 29, 1980, and completed their training by 1981. This group was selected to supplement the 35 astronauts that had been selected in 1978, and marked the first time that non-Americans were trained as mission specialists with the selections of ESA astronauts Claude Nicollier and Wubbo Ockels. In keeping with the previous group, astronaut candidates were divided into pilots and mission specialists, with eight pilots, eleven mission specialists, and two international mission specialists within the group.

NASA Astronaut Group 8 was a group of 35 astronauts announced on January 16, 1978. It was the first NASA selection since Group 6 in 1967, and was the largest group to that date. The class was the first to include female and minority astronauts; of the 35 selected, six were women, one of them being Jewish American, three were African American, and one was Asian American. Due to the long delay between the last Apollo lunar mission in 1972 and the first flight of the Space Shuttle in 1981, few astronauts from the older groups remained, and they were outnumbered by the newcomers, who became known as the Thirty-Five New Guys (TFNG). Since then, a new group of candidates has been selected roughly every two years.