CANCEL
Missions
Badges
Crossed Kármán Line
This astronaut crossed the Kármán Line (100 km), the internationally accepted boundary of space.
Crewmates
135
Brewster H. Shaw Jr.
3
MISSIONS
22.2
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
137
Ulf Merbold
3
MISSIONS
49.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
138
Byron K. Lichtenberg
2
MISSIONS
19.2
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
170
Jeffrey A. Hoffman
5
MISSIONS
50.5
DAYS IN SPACE
4
SPACEWALKS
1
DAYS SPACEWALKING
187
John M. Lounge
3
MISSIONS
20.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
21
John W. Young
6
MISSIONS
34.8
DAYS IN SPACE
3
SPACEWALKS
0.8
DAYS SPACEWALKING
220
Guy S. Gardner
2
MISSIONS
13.3
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
248
Samuel T. Durrance
2
MISSIONS
25.6
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
249
Ronald A. Parise
2
MISSIONS
25.6
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
70
Owen K. Garriott
2
MISSIONS
69.8
DAYS IN SPACE
3
SPACEWALKS
0.6
DAYS SPACEWALKING
84
Vance D. Brand
4
MISSIONS
31.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
WIKIPEDIA EXCERPT
Robert Allan Ridley Parker is an American physicist and astronomer, former Director of the NASA Management Office at the Jet Propulsion Laboratory, and a retired NASA astronaut. He was a Mission Specialist on two Space Shuttle missions, STS-9 and STS-35.