Surprising Space Exploration Facts

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Sputnik 1 launched space exploration in 1957

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Apollo 11 landed the first humans on the moon in 1969

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Voyager 1 is the farthest human-made object from Earth

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"Space fever," which affects astronauts, causes their faces to temporarily swell in space

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The ISS orbits the Earth every 90 minutes

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Valentina Tereshkova was the first woman in space

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Mars rovers found evidence of ancient water

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Hubble Telescope has made over 1.5 million observations

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