"Spacewalking Cosmonauts Successfully Locate and Address ISS Radiator Coolant Leak"

Russian cosmonauts conducted a spacewalk outside the International Space Station to isolate a leaking radiator and observed residual coolant spewing out into space. One of the cosmonauts attempted to sop up the pooling coolant but was instructed to leave the area when some liquid reached a safety tether. The cosmonauts also worked on attaching a synthetic aperture radar antenna and released a small student-built nanosatellite, although the solar sail propulsion system failed to deploy. The radiator's installation had gone normally, but on October 9, frozen coolant flakes were observed streaming from the radiator. This marks the third coolant leak incident for the Russians in less than a year.