USA
Robert Stewart
(Robert Lee Stewart)
(Aug 13, 1942)
Astronaut 135
Astronaut of the USA 69
EVA astronaut 42
EVA astronaut of the USA 30
Spaceflights 2
EVAs 2
Spaceflights
| No. | Launch | Orbiter | Duration |
| 1st | Feb 03, 1984 | Challenger STS-41B | 7 d 23 h 15 m 55 s (191 h 15 m 55 s) |
| 2nd | Oct 03, 1985 | Atlantis STS-51J | 4 d 1 h 44 m 38 s (97 h 44 m 38 s) |
| Cumulative time: | 12 d 1 h 0 m 33 s (289 h 0 m 33 s) | ||
EVAs
| No. | Date | Orbiter | Duration |
| 1st | Feb 07, 1984 | Challenger | 5 h 55 m |
| 2nd | Feb 09, 1984 | Challenger | 6 h 17 m |
| Cumulative time: | 12 h 12 m | ||
Robert Stewart.
Robert Stewart float in the open space.
Robert Stewart, 2018.
Astronaut of the USA 68
Astronaut of the USA 70
Astronaut 134
Astronaut 136
2001 Antropos.