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Greek philosopher that proved the earth was round and believed the earth was the center of the universe.
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He believed that the Earth was the center of the Universe. The word for earth in Greek is geo, so we call this idea a "geocentric" theory.
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Was considered founder of trigonometry
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When virtually everyone believed Earth was the center of the universe, Polish scientist Nicolaus Copernicus proposed that the planets instead revolved around the sun.
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He was one of the individuals whose work helped overturn that belief in favor of a heliocentric model of the universe, with the sun at the center.
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Galileo's observations strengthened his belief in Copernicus' theory that Earth and all other planets revolve around the Sun
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He is known with the invention of the telescope because he was the first one who tried to obtain a patent for it.
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Tycho Brahe's assistant discovered that the orbit of the planets are not circular but they are oval of astronomy and physics
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He discovered the division of the rings of Saturn 4 of the moons and the rotation periods of mars and Jupiter.
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He invented calculus, formulated the law of gravitation and discovered the laws of motion Newton was the first person to explain tides scientifically
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Helped to find latitude it was invisible lines on the earth showing a place or area.
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It is a type of optical telescope that uses a lens as its objective to form an image.
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Newton's first reflecting telescope was completed and is the earliest known functional reflecting telescope.
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His most significant contributions to astronomy were the discoveries of several comets, including the periodic comet 35P/Herschel-Rigollet, which bears her name.
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he predicted the existence of a planet beyond the orbit of Neptune and initiated the search that ended in the discovery of Pluto.
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he developed the Hertzsprung–Russell diagram. The HR diagram shows the correlation between the absolute brightness and the spectral type of star
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Find out about gravity, relativity and Einstein's quantum description of light
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His meticulous studies of spiral nebulae proved the existence of galaxies other than our own Milky Way.
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He first discovered radio waves emanating from the Milky Way. Radio Waves are the longest type of energy waves.
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the importance of Sputnik to the US in the midst of the cold war, Russia was successful in launching the satellite into space to orbit earth.
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the first human to travel into space when he launched into orbit on the Vostok 3KA-3 spacecraft, first human to orbit earth
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He was part of the first group of astronauts NASA selected. He became the first American to orbit Earth.
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The second was Apollo 11, which landed on the moon in 1969. First American to walk on the moon
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Space Shuttle program was the fourth human spaceflight program carried out by the National Aeronautics and Space Administration, which accomplished routine transportation for Earth-to-orbit
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Send humans to and from back safely
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It was a collaboration between NASA, the European Space Agency. which discovered Saturn and took seven years
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It is a partially-reusable heavy-lift launch vehicle designed and manufactured by SpaceX.