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Since Soviet Union astronaut Yuri Gagarin became the first person to fly in space in 1961, the exploration of the uni-verse has changed stupendously. In 2001, D
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Since Soviet Union astronaut Yuri Gagarin became the first person to fly in space in 1961, the exploration of the uni-verse has changed stupendously. In 2001, Dennis Tito, a U.S. billion-aire, reportedly paid $20 million for an eight-day trip in space, becom-ing the world's first space tourist.
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