CANCEL
Missions
Badges
Crossed Kármán Line
This astronaut crossed the Kármán Line (100 km), the internationally accepted boundary of space.
Crewmates
136
Robert A. Parker
2
MISSIONS
19.3
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
220
Guy S. Gardner
2
MISSIONS
13.3
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
249
Ronald A. Parise
2
MISSIONS
25.6
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
261
Tamara E. Jernigan
5
MISSIONS
63.1
DAYS IN SPACE
1
SPACEWALKS
0.3
DAYS SPACEWALKING
272
Stephen S. Oswald
3
MISSIONS
33.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
332
William G. Gregory
1
MISSIONS
16.6
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
333
John M. Grunsfeld
5
MISSIONS
58.6
DAYS IN SPACE
8
SPACEWALKS
2.4
DAYS SPACEWALKING
334
Wendy B. Lawrence
4
MISSIONS
51.2
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
84
Vance D. Brand
4
MISSIONS
31.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
WIKIPEDIA EXCERPT
Samuel Thornton Durrance is an American scientist who flew aboard two NASA Space Shuttle missions as a payload specialist.