NASA astronaut Reid Wiseman and European Space Agency astronaut Alexander Gerst (not shown) works outside the space station’s Quest airlock in the first of three spacewalks for the Expedition 41 crew aboard the International Space Station in this image released October 8, 2014. The spacewalkers worked outside the space station’s Quest airlock for 6 hours and 13 minutes, relocating a failed cooling pump to external stowage and installing gear that provides back up power to external robotics equipment. REUTERS/Alexander Gerst/NASA/ESA/Handout (OUTER SPACE – Tags: SCIENCE TECHNOLOGY TPX IMAGES OF THE DAY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS