Spacewalker Sergey Prokopyev jettisons a 5-kilogram bundle of obsolete hardware into the vacuum of space to harmlessly burn up in the Earth's atmosphere. Prokopyev along with fellow spacewalker Dmitri Petelin (out of frame) earlier completed the installation of an experiment airlock on the Nauka science module. The duo began their spacewalk at 4 p.m. EDT on Wednesday, finishing up seven hours, 11 minutes later at 11:11 p.m. #roscosmos #cosmonaut #spacewalk #walk #rassvet #nauka #esa #european #robotic #arm #era #international #space #station