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Piazza discovers the first asteroid, Ceres.
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Aspha Hall discovered Phobos, one of Mars' Moons.
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There was a total solar eclipse.
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Russians launch the first artificial satellite, Sputnik 1.
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The US launched their first satellite, Explorer 1.
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The US launched Ham the chimpanzee into space on the Mercury rocket.
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Luna 9 landed on the Moon.
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US astronaut Neil Armstrong was the first person to ever walk on the Moon.
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First Saturn fly-by. Done by Pioneer 11.
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Dennis Tito became the first tourist to enter space.
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Twin Mars 'Exploration Rover' missions 'Spirit' and 'Opportunity' land on Mars.
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The International Astronomical Union demoted Pluto to a dwarf planet.
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The first sample of an asteroid.
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NASA found signs of water on Mars!