Live coverage: Soyuz crew capsule departs station, lands in Kazakhstan

Watch a replay of SpaceX’s Falcon 9 rocket lifting off from Cape Canaveral’s Complex 40 launch pad Friday, as seen from the Kennedy Space Center press site five miles away.

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.

SpaceX called off a Falcon 9 countdown Wednesday due to the threat of lightning from thunderstorms along Florida’s Space Coast, pushing back the departure of a cargo mission for the International Space Station until Thursday.