Expedition 49 commander Anatoly Ivanishin of the Russian Federal Space Agency, NASA astronaut Kate Rubins and Takuya Onishi of the Japan Aerospace Exploration Agency undock from the International Space Station aboard the Soyuz MS-01 capsule for return to Earth.
Mission Reports
Astronauts finish repairs to space station cosmic ray detector
During a fourth spacewalk Saturday to wrap up repairs of the coolant system in a $2 billion cosmic ray detector, Italian astronaut Luca Parmitano and Drew Morgan discovered a leak in one of eight coolant lines that were spliced into a new pump module during three earlier excursions. But Parmitano was able to tighten a fitting on the line and the astronauts were able to complete the repair work, setting the stage for the instrument to resume science operations.