Image: Deployment of the space station`s roll-out solar array experiment
(PHYSorg.com Space & Earth)

Over the weekend of June 17-18, 2017, engineers on the ground remotely operated the International Space Station`s robotic Canadarm2 to extract the Roll Out Solar Array (ROSA) experiment from the SpaceX Dragon resupply ship. The experiment will remain attached to the Canadarm2 over seven days to test the effectiveness of ROSA, an advanced, flexible solar array that rolls out like a tape measure.