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Galileo Galilei is the first to see the moon through a telescope.
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Robert Goddard launches the first liquid fueled rocket.
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Soviet Union launches their first rocket.
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The first artificial satellite (Sputnik) is put in orbit.
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The first animal was put into space but did not return alive.
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The first rocket is put into orbit
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First sighting of Mars by NASA.
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The US puts the first person on the moon!
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The first space station is put in space.
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First landing on Mars/first signals from the surface.
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First spacecraft beyond Neptune's orbit.
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First picture of the whole solar system.
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The first space telescope is launched.
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The first asteroid sample is brought to Earth.
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NASA lands a rover on Mars.
