Nuclear Age and the Cold War Crossword

hostile relations between the US and USSR for economic and political dominance.
Soviet Union space pilots.
First living organism to orbit the earth.
year first communications satellite was launched.
American satellite which marked American participation in the space race.
Meaning of Sputnik.
Most powerful countries after WW II.
First moon landing mission.
Communist countries of Eastern Europe After WW II which were under soviet domination.
Group of countries that form an alliance.
Agreement between countries that they will support each other.
Concerted messages aimed at influencing the opinions or behaviour of large numbers of people.
A very powerful and deadly bomb which uses the energy released when atoms are split.
long-range rockets
Competition of aerospace dominance
A socio-economic system where the state owns the resources and enforces strict limits on human rights.
A period in which nuclear energy and nuclear weapons were developed.
First woman to have flown in space.