Tsiolkovsky is a closed town in Amur Oblast, Russia, located on the Bolshaya Pyora River, 110 kilometers from the border with China an…Tsiolkovsky is a closed town in Amur Oblast, Russia, located on the Bolshaya Pyora River, 110 kilometers from the border with China and 180 kilometers north of Blagoveshchensk, the administrative center of the oblast. Population: 5,892 ; 5,050. The town serves the nearby spaceport, Vostochny Cosmodrome.