The International Space Station is seen from the Space Shuttle Discovery

This NASA photo taken by an Astronaut onboard the Space Shuttle Discover shows the International Space Station as the space shuttle separates, March 25, 2009. Earlier the STS-119 and Expedition 18 crews concluded 9 days, 20 hours and 10 minutes of cooperative work onboard the shuttle and station to install a solar array trust onto the station. Space Shuttle Discovery is preparing for its Saturday afternoon return to Earth. (UPI Photo/NASA)