CANCEL
Missions
Badges
Crossed Kármán Line
This astronaut crossed the Kármán Line (100 km), the internationally accepted boundary of space.
Space Resident
This astronaut has spent over a month in space.
Crewmates
120
Joseph P. Allen
2
MISSIONS
13.1
DAYS IN SPACE
2
SPACEWALKS
0.5
DAYS SPACEWALKING
126
Frederick H. Hauck
3
MISSIONS
18.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
129
Norman E. Thagard
5
MISSIONS
140.6
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
132
Guion S. Bluford Jr.
4
MISSIONS
28.7
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
133
Dale A. Gardner
2
MISSIONS
14
DAYS IN SPACE
2
SPACEWALKS
0.5
DAYS SPACEWALKING
162
Anna L. Fisher
1
MISSIONS
8
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
191
Ronald J. Grabe
4
MISSIONS
26.2
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
200
Mary L. Cleave
2
MISSIONS
10.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
225
Mark C. Lee
4
MISSIONS
32.9
DAYS IN SPACE
4
SPACEWALKS
1.1
DAYS SPACEWALKING
240
Robert D. Cabana
4
MISSIONS
37.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
269
James S. Voss
5
MISSIONS
202.2
DAYS IN SPACE
4
SPACEWALKS
0.9
DAYS SPACEWALKING
294
Michael R. Clifford
3
MISSIONS
27.8
DAYS IN SPACE
1
SPACEWALKS
0.3
DAYS SPACEWALKING
297
Kenneth D. Cockrell
5
MISSIONS
64.5
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
308
James H. Newman
4
MISSIONS
43.4
DAYS IN SPACE
6
SPACEWALKS
1.8
DAYS SPACEWALKING
341
Michael L. Gernhardt
4
MISSIONS
43.3
DAYS IN SPACE
4
SPACEWALKS
1
DAYS SPACEWALKING
WIKIPEDIA EXCERPT
David Mathieson "Dave" Walker, was an American naval officer and aviator, fighter pilot, test pilot, and a former NASA astronaut. He flew aboard four Space Shuttle missions in the 1980s and 1990s.