More on Sputnik from Infoplease:

• sputnik: meaning and definitions - sputnik: Definition and Pronunciation
• The Dawning of the Space Age - The Dawning of the Space Age On Oct. 4, 1957, the Soviet Union put the world's first artificial ...
• Suggestions for spelling of encyclopedia/sputnik - The Infoplease spelling checker combines spelling help with our dictionary and thesaurus
• 1950 – 1959 World History - 1950 – 1959 World History Atomic Bomb National Archives and Records Admin. Dwight D. ...
• Russia - Learn about the history, geography and culture of Russia and find statistical and demographic information|Information on Russia — geography, history, politics, government, economy, population statistics, culture, religion, languages, largest cities, as well as a map and the national flag.

See more Encyclopedia articles on: Space Exploration