On August 10, 2015 at 14:17 UTC two Russian cosmonauts Gennadiy Padalka and Mikhail Kornienko began their spacewalk. The cosmonauts had 10 objectives, including installation of padded handrails to make future EVAs easier; installation of fasteners to hold antenna covers in place; the replacement of one antenna; inspections of external experiments and the retrieval of a plasma physics experiment package. They also cleaned one of Zvezda’s windows to remove residue deposited by thruster firings and collected similar residue samples from a solar array panel and the area around vents used by a Russian oxygen generator and carbon dioxide scrubber. There were no problems of any significance and the spacewalkers ran ahead of schedule most of the day. The cosmonauts spent 5 hours and 34 minutes outside the International Space Station. This was the 188th spacewalk devoted to station assembly and maintenance since construction began in 1998. It was also the 48th spacewalk performed from the Russian segment of the ISS. It was the 10th EVA for Gennadiy Padalka and the 2nd EVA for Mikhail Kornienko.