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Sputnik was launched by Russia to orbit the Earth. This is considered the start of the space age.
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Yuri Gagarin was the first person to travel into space and orbit the Earth.
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Neil Armstrong and Edwin Aldrin were the first to land on the moon.
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Due to new findings by astronomers, it has been determined that Pluto is not a planet but instead a Dwarf Planet.
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The Rover Curiosity lands safely on Mars.
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