Two Russian cosmonauts completed the third spacewalk within a week at the International Space Station Friday, setting a record for the longest spacewalk by a Russian team. Commander Oleg Kotov and Flight Engineer Sergey Ryazanskiy spent eight hours and seven minutes outside the ISS on Friday in a bid to install high-fidelity cameras to capture images of Earth, dpa reported. The pair were able to install the cameras, but were later forced to remove them and bring them back inside after the cameras could not properly transmit data to the ground, US space agency NASA said. US astronauts Rick Mastracchio and Michael Hopkins undertook spacewalks last Saturday and Tuesday, on Christmas Eve, to fix part of a faulty cooling system.