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Modern History/Space Exploration
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Early Ideas of Space
Geocentricities
Heliocentric Model
The Roman Catholic Church was very much in control of early astronomy.
Space Race
USSR Space Attempts and Success
Sputnik, a small metal ball with instruments attached to it, was the first man-made object to leave earth and orbit it. It was really technologically, simple, and would set the tone for much of the Soviet Union's space exploration program.
US Space Attempts and Success
The first satellites were launched by the Soviet Union at the end of the 1950's. If they can put a satellite into space, they can launch a warhead at the United States. This was what spurred the United States to start their own space program to challenge the perceived "Soviet Superiority", and start academically challenging students to be successful in Math and the Sciences.
Further Exploration
Space Tower
Space Colonies
/Space Station/
/Lunar Colony/
/Martian Colony/
Search for Intelligent Life in Space