1990 Astronaut Candidates
| Lcdr. Daniel W. Bursch | U.S. Navy | Mission Specialist |
| Dr. Leroy Chiao | Civilian | Mission Specialist |
| Maj. Michael R. U. Clifford | U.S. Army | Mission Specialist |
| Kenneth D. Cockrell | Civilian | Pilot |
| Maj. Eileen M. Collins | U.S. Air Force | Pilot |
| Capt. William G. Gregory | U.S. Air Force | Pilot |
| Maj. James D. Halsell, Jr. | U.S. Air Force | Pilot |
| Dr. Bernard A. Harris, Jr. | Civilian | Mission Specialist |
| Capt. Susan J. Helms | U.S. Air Force | Mission Specialist |
| Dr. Thomas D. Jones | Civilian | Mission Specialist |
| Maj. William S. McArthur, Jr. | U.S. Army | Mission Specialist |
| Dr. James H. Newman | Civilian | Mission Specialist |
| Dr. Ellen Ochoa | Civilian | Mission Specialist |
| Maj. Charles J. Precourt | U.S. Air Force | Pilot |
| Capt. Richard A. Searfoss | U.S. Air Force | Pilot |
| Dr. Ronald M. Sega | Civilian | Mission Specialist |
| Capt. Nancy J. Sherlock | U.S. Army | Mission Specialist |
| Dr. Donald A. Thomas | Civilian | Mission Specialist |
| Dr. Thomas D. Jones | Civilian | Mission Specialist |
| Dr. Janice E. Voss | Civilian | Mission Specialist |
| Capt. Carl E. Walz | U.S. Air Force | Mission Specialist |
| Maj. Terrence W. Wilcutt | U.S. Marine Corps | Pilot |
| Dr. Peter J. K. Wisoff | Civilian | Mission Specialist |
| Dr. David A. Wolf | Civilian | Mission Specialist |
