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
240
Robert D. Cabana
4
MISSIONS
37.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
257
Richard J. Hieb
3
MISSIONS
31.9
DAYS IN SPACE
3
SPACEWALKS
0.7
DAYS SPACEWALKING
268
Terence T. Henricks
4
MISSIONS
42.8
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
303
Nancy J. Currie-Gregg
4
MISSIONS
41.6
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
305
Janice E. Voss
5
MISSIONS
49.2
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
310
Carl E. Walz
4
MISSIONS
230.5
DAYS IN SPACE
3
SPACEWALKS
0.8
DAYS SPACEWALKING
320
James D. Halsell Jr.
5
MISSIONS
52.4
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
321
Leroy Chiao
4
MISSIONS
229.3
DAYS IN SPACE
6
SPACEWALKS
1.5
DAYS SPACEWALKING
323
Chiaki Mukai
2
MISSIONS
23.7
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
337
Kevin R. Kregel
4
MISSIONS
52.8
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
338
Mary E. Weber
2
MISSIONS
18.8
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
341
Michael L. Gernhardt
4
MISSIONS
43.3
DAYS IN SPACE
4
SPACEWALKS
1
DAYS SPACEWALKING
365
Susan L. Kilrain Still
2
MISSIONS
19.7
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
366
Roger K. Crouch
2
MISSIONS
19.7
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
367
Gregory T. Linteris
2
MISSIONS
19.7
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
WIKIPEDIA EXCERPT
Donald Alan Thomas, Ph.D. is an American engineer and a former NASA astronaut.