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.
Space Resident
This astronaut has spent over a month in space.
Crewmates
153
Steven A. Hawley
5
MISSIONS
32.1
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
170
Jeffrey A. Hoffman
5
MISSIONS
50.5
DAYS IN SPACE
4
SPACEWALKS
1
DAYS SPACEWALKING
204
Franklin R. Chang Díaz
7
MISSIONS
66.8
DAYS IN SPACE
3
SPACEWALKS
0.9
DAYS SPACEWALKING
225
Mark C. Lee
4
MISSIONS
32.9
DAYS IN SPACE
4
SPACEWALKS
1.1
DAYS SPACEWALKING
243
Frank L. Culbertson Jr.
3
MISSIONS
143.6
DAYS IN SPACE
1
SPACEWALKS
0.2
DAYS SPACEWALKING
254
Gregory J. Harbaugh
4
MISSIONS
34.1
DAYS IN SPACE
3
SPACEWALKS
0.8
DAYS SPACEWALKING
269
James S. Voss
5
MISSIONS
202.2
DAYS IN SPACE
4
SPACEWALKS
0.9
DAYS SPACEWALKING
281
Kenneth D. Bowersox
5
MISSIONS
211.6
DAYS IN SPACE
2
SPACEWALKS
0.6
DAYS SPACEWALKING
286
Andrew M. Allen
3
MISSIONS
37.7
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
287
Claude Nicollier
4
MISSIONS
42.5
DAYS IN SPACE
1
SPACEWALKS
0.3
DAYS SPACEWALKING
295
Susan J. Helms
5
MISSIONS
211
DAYS IN SPACE
1
SPACEWALKS
0.4
DAYS SPACEWALKING
315
Yury Usachov
4
MISSIONS
552.9
DAYS IN SPACE
7
SPACEWALKS
1.3
DAYS SPACEWALKING
320
James D. Halsell Jr.
5
MISSIONS
52.4
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
326
Steven L. Smith
4
MISSIONS
40
DAYS IN SPACE
7
SPACEWALKS
2.1
DAYS SPACEWALKING
328
Joseph R. Tanner
4
MISSIONS
43.6
DAYS IN SPACE
7
SPACEWALKS
1.9
DAYS SPACEWALKING
335
Vladimir N. Dezhurov
2
MISSIONS
244.2
DAYS IN SPACE
9
SPACEWALKS
1.6
DAYS SPACEWALKING
338
Mary E. Weber
2
MISSIONS
18.8
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
351
Daniel T. Barry
3
MISSIONS
30.6
DAYS IN SPACE
4
SPACEWALKS
1.1
DAYS SPACEWALKING
354
Maurizio Cheli
1
MISSIONS
15.7
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
355
Umberto Guidoni
2
MISSIONS
27.6
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
394
CJ Sturckow
9
MISSIONS
51.4
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
403
Jeffrey N. Williams
4
MISSIONS
534.1
DAYS IN SPACE
5
SPACEWALKS
1.3
DAYS SPACEWALKING
415
Patrick G. Forrester
3
MISSIONS
39.6
DAYS IN SPACE
4
SPACEWALKS
1.1
DAYS SPACEWALKING
416
Mikhail Tyurin
3
MISSIONS
532.1
DAYS IN SPACE
5
SPACEWALKS
1.1
DAYS SPACEWALKING
WIKIPEDIA EXCERPT
Scott Jay "Doc" Horowitz is a retired American astronaut and a veteran of four space shuttle missions.