Ellen Ochoa
1
John Herrington
2
Andre Kuipers
3
Jeff Williams
4
Michael López-Alegría
5
Gennady Padalka
6
Susan Helms
7
Thomas Reiter
8
Brent Ward Jett Jr.
9
Michael Fossum
10
Peter Wisoff
11
Sergei Treshchov
12
68 Year Olds
Top Astronauts
