What is the scientists name that launched the first rocket?
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In 1898 the Russian Konstantin Tsiolkovsky proposed the idea of space exploration by rocket, he was the first one to suggest the use of liquid propellants for rockets in order to achieve greater range. He is the father of modern astronautics.  \n\nAfter him came Robert Goddard, he conducted practical experiments in rocketry and was the first one to build a successful liquid-propellant rocket in 1926.
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1. His scientists developed the modern rocket,  which was and is still used in space exploration.\n2. His scientists also developed the jet engine, without which modern flight would take much longer.\n3. He created a war so horrific that it forced Europe to realize war was the means of destruction only, and that to grow as a continent, they must learn to live in cooperative peace.  This is really the first time this concept has been brought to frution.\n\nOkay, enough devil's advocate for one day.
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Issac Newton\n\nGallileo however proved that gravitational 'time to fall'was the same for 2 objects of different weights. Gallileo died 11 months before Newton's birth. There work was very complimentary. Newton established the gravitational constant that both backs up Gallileo and demonstrated that it is also gravity that causes the planets to orbit the Sun. The apple under the tree is a bit of a myth!
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The first person I thought of was Gregor Mendel, but everyone already pretty much knew that plants were alive already, he just showed that they have genetics.
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The first artificial satellite was launched in 1957, and it was made by the Soviet Union. The sole purpose was to show that man can put an object in orbit around the earth. The inventor was Sergey Korolev.
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Niel Armstrong. Buzz Aldrin was supposed to be the first but Armstrong was closest to the door.
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Vostok 1 took Soviet Cosmonaut Yuri Gagarin into orbit on April 12, 1961.
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Isaac Newton. It would give him a big scare, considering he is most remembered for his laws of gravity.\nOh, and Christopher Columbus........."OMG!    It is flat!!!!"
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Origin of the first life.
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The discovery of oxygen
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“Buzz” Aldrin\n\n\nSix hours after landing at 4:17 p.m. Eastern Daylight Time (with less than 30 seconds of fuel remaining), Neil A. Armstrong took the “Small Step” into our greater future when he stepped off the Lunar Module, named “Eagle,” onto the surface of the Moon, from which he could look up and see Earth in the heavens as no one had done before him.\n\nHe was shortly joined by “Buzz” Aldrin, and the two astronauts spent 21 hours on the lunar surface and returned 46 pounds of lunar rocks. After their historic walks on the Moon, they successfully docked with the Command Module “Columbia,” in which Michael Collins was patiently orbiting the cold but no longer lifeless Moon.
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Henri Becquerel. \n\nGlenn T. Seaborg. \n\nMarie and Pierre Curie\n\nEnrico Fermi\n\nIrene Joliot-Curie\n\nFrederik Joliot\n\nErnest Rutherford\n\nHarold Urey\n\nand literally thousands and thousands more.
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The First satellite in Space, Sputnik.\nThe Moon Landing. First man on the moon.\nVoyager first satellite to exit solar system, Voyager.
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Newton actually is the first to come up with the law of universal gravity, g*m(1)*m(2)/(d)squared.  So he's the first to measure gravity as a force, but Galileo is the first in western culture to measure it as an acceleration and conclude it was a constant.
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Aryabhatta was the first satellite sent by India into space.\n\nLaunch Date : April 19, 1975 \nWeight : 360 kg \nLaunched by : Soviet Intercosmos Rocket of Soviet Union
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The first U.S. manned space mission:\n\nMission: Mercury 3 (first manned flight)\nSpacecraft Name: Freedom 7\nOccupant: Alan Shepard\nDate: 5/5/1961
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Neil Armstrong was the first person to set foot on the Moon