The Dragon contained biological samples and Legos.
(Matheepan Panchalingam, Creative Commons)
It will be China's fourth manned space flight, and might include a female astronaut.
Dragon is grappled by the space station's robotic arm. (NASA)
The mission culminated Saturday with the hatch opening of capsule Dragon.
The NASA/SpaceX COTS-2 launching. Image by NASA/Alan Ault/May 22, 2012
The first private cargo-carrying spacecraft to attempt reaching the International Space Station successfully began its journey Tuesday.
Atlantis returns from mission STS-135, the last of the space shuttle program. Photo: NASA/Bill Ingalls, July 21, 2011
Atlantis' landing brings pride, relief and transition.