Astronauts lend a hand to space station’s robotic arm

A robotic arm that works on the outside of the International Space Station got a hand today from two astronauts.
Space station commander Scott Kelly and newly arrived flight engineer Tim Kopra spent a little over three hours on a spacewalk Monday morning to fix a stalled transporter that carries the robotic arm, used to grab onto docking space crafts and unload their cargo.
Without today's fix, the Russian supply ship, named Progress, would not be able to dock with the space station as schedule