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

Two NASA astronauts and an Italian flight engineer took shelter in the space station’s Russian segment Wednesday as mission control analyzed a possible leak of toxic ammonia coolant aboard the complex. Initial data indicated it was likely a false alarm.

Japanese space officials have rescheduled the launch of an H-2B rocket and a space station-bound HTV supply ship for Saturday after halting a countdown last week due to a propulsion system problem and bypassing a launch opportunity Friday because of a poor weather forecast.

A Russian Proton rocket lifted off Thursday with a U.S.-built communications satellite to broadcast television over Latin America, firing into orbit from the historic Baikonur Cosmodrome in Kazakhstan.