Photos: Space shuttle Discovery
This image provided by NASA shows four women posing at the International Space Station while space shuttle Discovery was docked there on Saturday, April 10, 2010. Pictured clockwise from the lower left are NASA astronaut Tracy Caldwell Dyson, NASA astronaut Dorothy Metcalf-Lindenburger, Japan Aerospace Exploration Agency (JAXA) astronaut Naoko Yamazaki and NASA astronaut Stephanie Wilson.
