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Galileo made the first telescope using two lenses, it was a refractor telescope.
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Sir Issac Newton made the first working reflector telescope using curved mirrors.
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Leaped took the first clear telescopic photograph of the moon.
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Goddard launched the first liquid fueled rocket.
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First animals in space were fruit flies in 1947.
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Sputnik was the first artificial satellite launched into orbit.
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Green was the first American astronaut to be sent into orbit (around earth.)
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First man to walk in space.
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The Mariner 4 got the first pictures of Mars surface.
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They were the first astronauts to step foot on the moon.
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Reached Saturn and began taking pictures.
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Completes the first and only flyby of Uranus.
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Returned to earth with the first dust ever collected from a comet.
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First man made spacecraft to orbit an asteroid.
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Successfully orbited the dward planet Ceres.
