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Galileo Galilei used a telescope to made the discovery of Jupiter's moons, Lunar craters and the phases of Venus.
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William Moore's Treatise on the Motion of Rockets is the first exposition of the rocket equation based on Newton's third law of motion.
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One of the first pictures ever taken of the moon by John William Draper.
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Robert H. Goddard launched the first liquid-fueled rocket.
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A German V2 rocket was the first to cross the Kármán line.
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V-2 rocket gave us our first look at Earth from beyond the atmosphere。
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An American V-2 rocket carried fruit flies launched and became the first animals to reach outer space and be recovered alive.
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The first ICBMs were deployed by the Soviet Union.
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Soviet Union successfully launched Sputnik I, the world's first artificial satellite.
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The Soviet Union launched Sputnik 2. On board the small satellite was a little dog, Laika, the first animal to orbit Earth.
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Yuri Gagarin was the first human to journey into outer space. His Vostok spacecraft completed an orbit of the Earth.
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Mariner 2, an American space probe to Venus, was the first robotic space probe to conduct a successful planetary flyby.
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The Union Soviet cosmonaut Alexei Leonov made the first spacewalk in history.
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Mariner 4 performed the first successful flyby of the planet Mars, returning the first pictures of the Martian surface.
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First docking between American spaceflight Gemini 8 and spacecraft Agena target vehicle.
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Luna 9, an unmanned space mission of the Soviet Union's Luna programme, became the first spacecraft to achieve a soft landing on the Moon.
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Apollo 11 was the spaceflight that landed the first humans on the Moon, American astronaut Neil Armstrong.
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Luna 16 was an unmanned space mission and was the first robotic probe to land on the Moon and return a sample of lunar soil to Earth.
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The first space station was Salyut 1, which was launched by the Soviet Union.
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Viking 1, an unmanned scientific probe controlled by scientists on Earth, transmits the first pictures from the surface of Mars.
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Space Shuttle Columbia was the first space-rated Space Shuttle in NASA's orbiter fleet. It launched for the first time on mission STS-1.
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First photograph of the whole solar system was taken by Voyager 1. It was lanched by NASA.
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The Hubble Space Telescope is a space telescope that was launched into low Earth orbit by NASA to observe the space.
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Pioneer 10, launched on March 2, 1972, reaches a distance 50 times farther from the sun than Earth, becoming the first spacecraft to leave the solar system.
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Ulysses was a joint venture of NASA and the European Space Agency (ESA). It is the first to polar orbit around the sun.
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Galileo launched the first probe into Jupiter, directly measuring its atmospher.
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Mars Pathfinder is an American robotic spacecraft that landed a base station with a roving probe on Mars.
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Cassini-Huygens operates by NASA,ESA and ASI, became the first spacecraft to go into orbit around Saturn.
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Kepler Mission is launched by NASA. It is the first space telescope designated to search for Earth-like exoplanets.
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Dawn is a space probe launched by NASA. It is the first spacecraft to orbit two separate celestial bodies.