The graphic demonstrates the spacewalk coming up on Tuesday. NASA Flight Engineer Reid Wiseman and Flight Engineer Alexander Gerst of the European Space Agency will exit the station's Quest airlock for the Oct. 7 spacewalk at about 8:10 a.m., both wearing U.S. spacesuits. NASA TV coverage of the planned six-and-a-half-hour spacewalk will begin at 7 a.m. The astronauts will move a failed cooling pump from temporary to long-term storage on the station's truss. They also will install a new relay system that will provide backup power options to the mobile transporter, which moves the large robotic arm around the out outside of the space station. #iss #internationalspacestation #nasa #spacewalk #reid #alex