The Cold War was the continuing state from roughly 1946 to 1991 of political conflict, military tension, proxy wars, and economic competition between the Communist World – primarily the Soviet Union and its satellite states and allies – and the powers of the Western world, primarily the United States, the United Kingdom and its allies (i.e. NATO.) Although the chief military forces never engaged in a major battle with each other, they expressed the conflict through military coalitions, strategic conventional force deployments, extensive aid to states deemed vulnerable, proxy wars, espionage, propaganda, conventional and nuclear arms races, appeals to neutral nations, rivalry at sports events, and technological competitions such as the Space Race.
Though its roots lie in early rocket technology and in the international tensions following World War II, the Space Race effectively began after the Soviet launch of Sputnik 1 on 4 October 1957. The term originated as an analogy to the arms race. The Space Race became an important part of the cultural and technological rivalry between the USSR and the United States during the Cold War. Space technology became a particularly important arena in this conflict, both because of its potential military applications and due to the morale-boosting psychological benefits.
After World War II, the United States and the Soviet Union became locked in a bitter Cold War of espionage and propaganda. Space exploration and satellite technology could feed into the cold war on both fronts. Satellite-borne equipment could spy on other countries, while space-faring accomplishments could serve as propaganda to tout a country's scientific prowess and military potential. The same rockets that might send a human into orbit or hit a specific spot on the Moon could send an atom bomb to a specific enemy city. Much of the technological development required for space travel applied equally well to wartime rockets such as Intercontinental ballistic missiles (ICBMs). Along with other aspects of the arms race, progress in space appeared as an indicator of technological and economic prowess, demonstrating the superiority of the ideology of that country. Space research had a dual purpose: it could serve peaceful ends, but could also contribute to military goals.
The two superpowers each worked to gain an edge in space research, neither knowing who might make a breakthrough first. They had each laid the groundwork for a race to space, and awaited only the starter's gun. (More...)
Gouzenko's defection exposed Joseph Stalin's efforts to steal nuclear secrets, and the then-unknown technique of planting sleeper agents. With World War II over, the "Gouzenko Affair" helped change western perceptions of the Soviet Union from an ally to an enemy, and is often credited as a triggering event of the Cold War. 
From Stettin in the Baltic to Trieste in the Adriatic an "iron curtain" has descended across the Continent. Behind that line lie all the capitals of the ancient states of Central and Eastern Europe. Warsaw, Berlin, Prague, Vienna, Budapest, Belgrade, Bucharest and Sofia; all these famous cities and the populations around them lie in what I must call the Soviet sphere, and all are subject, in one form or another, not only to Soviet influence but to a very high and in some cases increasing measure of control from Moscow.
...that the Doomsday Clock has been maintained since 1947 by the Board of Directors of the Bulletin of the Atomic Scientists at the University of Chicago?
...that the X Article, formally was titled "The Sources of Soviet Conduct?" The article describes the concepts that would become the bedrock of American Cold War policy and was published in Foreign Affairs in 1947?
...that during the Cold War, India tried to maintain its neutrality and was one of the founding members of the Non-Aligned Movement?