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First telescopic observation of the night sky: Discovery of Jupiter's moons, Lunar craters and the phases of Venus. (Galileo Galilei)
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Newton's laws of motion. And law of universal gravitation
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First exploration of the rocket equation based on Newton's third law of motion.
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First clear telescopic photograph of the Moon.
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First serious work published by Russian scientist that showed Space Exploration possible
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Patents on multi stage and liquid field rockets (R. H. Goddard)
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R. H. Goddard launches first liquid field rocket.
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German V-2 rocket enters outer space
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First U.S. designed rocket to reach edge of outer space.
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1st animal in space (fruit flies). U.S. V-2.
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First ICBM intercontinental ballistic missile by the USSR.
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First animal in orbit. (Dog-Laika) Sputnik1
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NASA (stands for National Aeronautics and Space Administration) was formed.
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Yuri Gagarin was the first man to enter space.
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Germini 8 was the first space craft to successfully dock to a different space craft.
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Neil Armstrong was the first human to step foot on the moon
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The first rover ever explored Mars
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First piece of Skylab was launched into space. It was the first United States space station.
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The American Apollo 18 and Soyuz 19 dock in the Apollo-Soyuz Test Project.
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The first rover, Viking 1, landed on planet Mars.
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First photos and soil samples from the surface of Mars.
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Voyager 1 reached Saturn and began transmitting images.
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Columbia became the 1st space shuttle to be launched.
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The second space shuttle, Challenger, was launched.
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The third space shuttle, Discovery, was launched.
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Challenger exploded after liftoff.
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The space shuttle, Discovery, deployed the Hubble Space telescope.
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Mae Jeminson was the first African-American woman in space.
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Eileen Collins became the first female Shuttle pilot
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The Mars pathfinder arrives on Mars and starts transmitting images.
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Columbia Space Shuttle broke up on re-entry into Earth's atmosphere.
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NASA launches Curiosity, the biggest, best equipped robot ever sent to explore another planet. It will reach Mars in 2012