Dragon and robotic arm

ESA astronaut Alexander Gerst took this image of the International Space Station’s robotic arm and the Dragon commercial supply spacecraft during his six-month Blue Dot mission.

The arm was used to move NASA’s Rapidscat from the Dragon to Europe’s Columbus laboratory module. Installed on Columbus, Rapidscat will scan ocean winds to aid weather predictions, including hurricane monitoring.

Follow Alexander and his mission via http://alexandergerst.esa.int