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
123
F. Story Musgrave
6
MISSIONS
53.4
DAYS IN SPACE
4
SPACEWALKS
1.1
DAYS SPACEWALKING
131
Daniel C. Brandenstein
4
MISSIONS
32.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
170
Jeffrey A. Hoffman
5
MISSIONS
50.5
DAYS IN SPACE
4
SPACEWALKS
1
DAYS SPACEWALKING
172
Frederick D. Gregory
3
MISSIONS
19
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
186
Richard O. Covey
4
MISSIONS
26.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
222
John E. Blaha
5
MISSIONS
161.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
231
Manley L. Carter Jr.
1
MISSIONS
5
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
238
Pierre J. Thuot
3
MISSIONS
27.3
DAYS IN SPACE
3
SPACEWALKS
0.7
DAYS SPACEWALKING
241
Bruce E. Melnick
2
MISSIONS
13
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
242
Thomas D. Akers
4
MISSIONS
33.9
DAYS IN SPACE
4
SPACEWALKS
1.2
DAYS SPACEWALKING
257
Richard J. Hieb
3
MISSIONS
31.9
DAYS IN SPACE
3
SPACEWALKS
0.7
DAYS SPACEWALKING
280
Kevin P. Chilton
3
MISSIONS
29.3
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
281
Kenneth D. Bowersox
5
MISSIONS
211.6
DAYS IN SPACE
2
SPACEWALKS
0.6
DAYS SPACEWALKING
287
Claude Nicollier
4
MISSIONS
42.5
DAYS IN SPACE
1
SPACEWALKS
0.3
DAYS SPACEWALKING
342
Kent V. Rominger
5
MISSIONS
67.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
343
Catherine G. Coleman
3
MISSIONS
180.2
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
344
Michael López-Alegría
6
MISSIONS
296.7
DAYS IN SPACE
10
SPACEWALKS
2.8
DAYS SPACEWALKING
345
Frederick W. Leslie
1
MISSIONS
15.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
346
Albert Sacco Jr.
1
MISSIONS
15.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
WIKIPEDIA EXCERPT
Kathryn Ryan Cordell Thornton is an American scientist and a former NASA astronaut. She was the associate dean for graduate programs at the University of Virginia School of Engineering and Applied Science, and is currently a professor of mechanical and aerospace engineering.