SpaceX Dragon Heads Home from ISS with Valuable Science Data.

Aboard the International Space Station, Expedition 47 Flight Engineers Tim Peake of the European Space Agency and Jeff Williams of NASA used the Canadarm2 robotic arm to release the SpaceX/Dragon cargo vehicle May 11 after it was unbolted and unberthed from the Earth-facing port of the Harmony module, ending a month-long stay at the complex. Dragon is bringing home some 3,600 pounds of experiments and precious biomedical samples, including material from the recently completed year-long mission of NASA’s Scott Kelly and Mikhail Kornienko of Roscosmos.