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.
Crewmates
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
333
John M. Grunsfeld
5
MISSIONS
58.6
DAYS IN SPACE
8
SPACEWALKS
2.4
DAYS SPACEWALKING
357
Richard M. Linnehan
4
MISSIONS
59.9
DAYS IN SPACE
6
SPACEWALKS
1.8
DAYS SPACEWALKING
384
Scott D. Altman
4
MISSIONS
51.5
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
420
Duane G. Carey
1
MISSIONS
10.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
503
Gregory C. Johnson
1
MISSIONS
12.9
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
504
Michael T. Good
2
MISSIONS
24.8
DAYS IN SPACE
4
SPACEWALKS
1.2
DAYS SPACEWALKING
505
K. Megan McArthur
2
MISSIONS
212.6
DAYS IN SPACE
-
SPACEWALKS
-
DAYS SPACEWALKING
506
Andrew J. Feustel
3
MISSIONS
225.4
DAYS IN SPACE
9
SPACEWALKS
2.6
DAYS SPACEWALKING
WIKIPEDIA EXCERPT
Michael James Massimino is an American professor of mechanical engineering at Columbia University and a former NASA astronaut. He is the senior advisor of space programs at the Intrepid Sea, Air & Space Museum.