First Woman to Command the International Space Station

First Woman to Command the International Space Station March is the annual celebration of National Women's History Month.

In this image from Jan. 30, 2008, Expedition 16 commander Peggy Whitson, the first female commander of the International Space Station, participates in a seven hour, ten minute spacewalk. 

During the spacewalk, Whitson and astronaut Daniel Tani, flight engineer, replaced a motor at the base of one of the station's solar wings. 

Image Credit: NASA