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
138
Byron K. Lichtenberg
2
MISSIONS
19.2
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
157
Kathryn D. Sullivan
3
MISSIONS
22.2
DAYS IN SPACE
1
SPACEWALKS
0.1
DAYS SPACEWALKING
158
David C. Leestma
3
MISSIONS
22.2
DAYS IN SPACE
1
SPACEWALKS
0.1
DAYS SPACEWALKING
191
Ronald J. Grabe
4
MISSIONS
26.2
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
203
Charles F. Bolden Jr.
4
MISSIONS
28.4
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
235
G. David Low
3
MISSIONS
29.8
DAYS IN SPACE
1
SPACEWALKS
0.2
DAYS SPACEWALKING
278
C. Michael Foale
6
MISSIONS
374.5
DAYS IN SPACE
4
SPACEWALKS
0.9
DAYS SPACEWALKING
279
Dirk Frimout
1
MISSIONS
8.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
303
Nancy J. Currie-Gregg
4
MISSIONS
41.6
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
304
Peter J. K. Wisoff
4
MISSIONS
44.3
DAYS IN SPACE
3
SPACEWALKS
0.8
DAYS SPACEWALKING
305
Janice E. Voss
5
MISSIONS
49.2
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
312
William S. McArthur Jr.
4
MISSIONS
224.9
DAYS IN SPACE
4
SPACEWALKS
1
DAYS SPACEWALKING
321
Leroy Chiao
4
MISSIONS
229.3
DAYS IN SPACE
6
SPACEWALKS
1.5
DAYS SPACEWALKING
344
Michael López-Alegría
6
MISSIONS
296.7
DAYS IN SPACE
10
SPACEWALKS
2.8
DAYS SPACEWALKING
348
Brent W. Jett
4
MISSIONS
41.8
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
349
Winston E. Scott
2
MISSIONS
24.6
DAYS IN SPACE
3
SPACEWALKS
0.8
DAYS SPACEWALKING
350
Koichi Wakata
5
MISSIONS
504.8
DAYS IN SPACE
2
SPACEWALKS
0.6
DAYS SPACEWALKING
351
Daniel T. Barry
3
MISSIONS
30.6
DAYS IN SPACE
4
SPACEWALKS
1.1
DAYS SPACEWALKING
407
Pamela A. Melroy
3
MISSIONS
38.8
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
WIKIPEDIA EXCERPT
Brian Duffy is a retired U.S. Air Force colonel and a former NASA astronaut. He flew aboard four Space Shuttle missions.