Celebrating International Women's Day: On April 8, 2010, STS-131 mission specialists Stephanie Wilson of NASA, Naoko Yamazaki of JAXA, Dorothy Metcalf-Lindenburger of NASA, and Expedition 23 flight engineer Tracy Caldwell Dyson (top left) work at the robotics workstation on the International Space Station, in support of transfer operations using the station's Canadarm2 robotic arm .
