Astronaut Steve Robinson on the robotic arm of the International Space Station. This was during his six-hour spacewalk to repair the heat shield on the docked space shuttle Discovery, after it was found that two ceramic strips were protruding from it. It was feared that the strips might have led to overheating of the shield during Discovery's re-entry. This was the first time that an astronaut had ever performed in-flight repairs to a shuttle. This mission, STS-114 or Return to Flight, launched on 26th July 2005. It was the first shuttle mission since Columbia was lost on re-entry on 1st February 2003. Photographed on 3rd August 2005.