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The top documents tagged [effects of space travel]
Early Space Missions Chapter 22 Section 2. Escape Velocity In order to break free of gravity, spacecraft must travel at speeds greater than 11 km/s
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Chapter 22
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Space Timeline. 1942 In 1942 the German V2 was the first rocket to reach 100km from the Earth’s surface. The rocket was designed by Whernher Von Braun,
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A Brief History of Space Exploration
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