Space Shuttle Endeavour Launches After Five Weather Delays
In This Photo: Christopher Cassidy
In this photo provided by NASA, Astronaut Christopher Cassidy, STS-127 mission specialist, participates in the third spacewalk for the joint shuttle-station crewmembers currently aboard the International Space Station July 22, 2009 in Space. Endeavour is on a 16-day mission with the crew of STS-127 that will include five spacewalks and complete construction of the Japan Aerospace Exploration Agency's Kibo laboratory.
(July 21, 2009 - Source: NASA/Getty Images North America) more pics from this album »