While Dragon was attached to the ISS, astronauts unloaded 1,146 pounds of supplies, including food and other crew provisions. Then they packed the Dragon -- the only spacecraft capable of returning a significant amount of cargo from the space station -- with 1,455 pounds of cargo that will be returned to Earth, including hardware used for experiments, spacewalks and station systems.
At 4:07 a.m. ED this morning, the SpaceX Dragon capsule was unberthed from the ISS, and is now preparing for the return.
If everything goes as planned, Dragon should land in the Pacific Ocean at 11:44 a.m. ET, hundreds of miles off the west coast of California.
Check out a gallery of photos from the mission tweeted by SpaceX below and our interview with SpaceX’s founder and chief designer Elon Musk here.