WHATWAS THE SOVIET UNION?
The Union of Soviet Socialist Republics (USSR) was a communist state that existed between 1922 and 1991. After 1991 it was dissolved into Russia and several other independent countries such as Ukraine, Georgia, Armenia and Kazakhstan.
BELKA AND STRELKA These two dogs became famous when they returned from space – alive! They were accompanied by a grey rabbit, 42 mice, 2 rats, flies and several plants and fungi. All the passengers survived.