Tenth on our list of spacewalking women is astronaut Nicole Stott. She performed her EVA from the International Space Station. Stott was also on the crew that holds the record for the longest aquanaut mission in the Aquarius research habitat.
Seventh in our list of spacewalking women is astronaut Peggy Whitson. Whitson is a biochemist and has spent an amazing 39 hours and 46 minutes floating outside of the safety of a spacecraft in Earth orbit.
The third in our list of spacewalking women is astronaut Kathryn C. Thornton. Her first spacewalk was from the Shuttle Endeavor. In total, Thornton logged an impressive 21 hours on extra vehicular activities.