The decision appeared to reflect infighting among members of the ruling elite.
One crew returns from the ISS after 141 days in space as another prepares to launch on Tuesday.
Leading professor who studied the village for four years is concerned that the unidentified illness may escalate.
An American flight engineer who landed back on Earth in Kazakhstan Monday documented his months-long journey on social media.
The crewmen, from Russia, America and Germany, have landed their capsule in Kazakhstan after almost six months in orbit