CANCEL
Missions
Badges
ISS Visitor
This astronaut visited the International Space Station.
Crossed Kármán Line
This astronaut crossed the Kármán Line (100 km), the internationally accepted boundary of space.
Elite Spacewalker
This astronaut is in the top 5% for total spacewalking time.
Space Resident
This astronaut has spent over a month in space.
Crewmates
268
Terence T. Henricks
4
MISSIONS
42.8
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
295
Susan J. Helms
5
MISSIONS
211
DAYS IN SPACE
1
SPACEWALKS
0.4
DAYS SPACEWALKING
303
Nancy J. Currie-Gregg
4
MISSIONS
41.6
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
308
James H. Newman
4
MISSIONS
43.4
DAYS IN SPACE
6
SPACEWALKS
1.8
DAYS SPACEWALKING
311
Richard A. Searfoss
3
MISSIONS
39.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
333
John M. Grunsfeld
5
MISSIONS
58.6
DAYS IN SPACE
8
SPACEWALKS
2.4
DAYS SPACEWALKING
337
Kevin R. Kregel
4
MISSIONS
52.8
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
358
Charles E. Brady Jr.
1
MISSIONS
16.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
359
Jean-Jacques Favier
1
MISSIONS
16.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
360
Robert Thirsk
2
MISSIONS
204.8
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
377
Takao Doi
2
MISSIONS
31.8
DAYS IN SPACE
2
SPACEWALKS
0.5
DAYS SPACEWALKING
384
Scott D. Altman
4
MISSIONS
51.5
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
385
Dafydd Williams
2
MISSIONS
28.7
DAYS IN SPACE
3
SPACEWALKS
0.7
DAYS SPACEWALKING
386
Kathryn P. Hire
2
MISSIONS
29.7
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
387
Jay C. Buckey
1
MISSIONS
15.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
388
James A. Pawelczyk
1
MISSIONS
15.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
389
Dominic L. P. Gorie
4
MISSIONS
49
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
420
Duane G. Carey
1
MISSIONS
10.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
421
Michael J. Massimino
2
MISSIONS
23.8
DAYS IN SPACE
4
SPACEWALKS
1.3
DAYS SPACEWALKING
480
Gregory H. Johnson
2
MISSIONS
31.5
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
481
Robert L. Behnken
3
MISSIONS
93.5
DAYS IN SPACE
10
SPACEWALKS
2.5
DAYS SPACEWALKING
482
Michael J. Foreman
2
MISSIONS
26.6
DAYS IN SPACE
5
SPACEWALKS
1.3
DAYS SPACEWALKING
483
Garrett E. Reisman
2
MISSIONS
107.1
DAYS IN SPACE
3
SPACEWALKS
0.9
DAYS SPACEWALKING
WIKIPEDIA EXCERPT
Richard Michael Linnehan is a United States Army veterinarian and a NASA astronaut.