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born 384 BC/ died 322 BC was a Greek philosopher and scientist and discover that the earth was round and thought that the earth was the center of the universe.
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born 190 BC/ died 120 BC was a Greek astronomer, geographer and mathematician who invented the precession of the equinoxes and found the distance of the distance between the earth and the moon.
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born 100 AD/ died 170 AD was a Roman geographer and astronomer wrote a poem of the stars and planets and believed that the earth was the center of the universe and was called the geocentric.
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invented in 220 BC was an inclinometer used to determine the latitude of a ship at sea.
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born 1473/ died 1543 was a renaissance who formulated the universe and thought that the sun was the center of the universe and the planets spun around the sun.
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born 1546/ died 1601 was a Danish astronomer developed astronomical instruments to measure and fix stars.
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The refracting telescope design was originally used in spy glasses and astronomical telescopes but is also used for long focus camera lenses. Although large refracting telescopes were very popular in the second half of the 19th century, for most research purposes the refracting telescope has been superseded by the reflecting telescope which allows larger apertures.
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born 1570/ died 1619 was a German Inventor that invented the telescope.
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born 1571/ died 1630 was a German mathematician that made the laws of planetary motion
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born 1564/ died 1642 was an Italian polymath thats discovered the sunspots and mountains on the moons and discovered that stars are not on earth's protection surface.
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A reflecting telescope is a telescope that uses a single or combination of curved mirrors that reflects light and forms an image,
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born 1624/ died 1712 was a French astronomer discovered the Cassini Division, the dark gap between the rings A and B of Saturn; he also discovered the four Saturn moon’s.
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born 1624/ died 1712 was a French astronomer discovered the Cassini Division, the dark gap between the rings A and B of Saturn; he also discovered the four Saturn moon’s.
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born 1738/ died 1822 was a British astronomer, the founder of sidereal astronomy of the systematic observation of the heavens.
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born 1855/ died 1916 was an american astronomer who predicted the existence of a planet beyond the orbit of Neptune and initiated the search that ended in discovery of pluto.
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born 1905/ died 1950 was a and discovered the radio waves are emanating from space.
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born 1889/ died 1953 was an American Astronomer discovered colors of the stars and discovered the universe is expanding and his theory was based on the big-bang theory.
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invented in 1954 and was the first Artificial Earth Satellite and it was launched to low Earth orbit.
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born 1879/ died 1955 was a German physicists who made a theory of relativity and gravitation.
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Started in 1961 was the third U.S. human spaceflight program carried out by the national aeronautics and the space administration.
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born 1873/ died 1967 was a Danish astronomer who developed the Hertzsprung- Russell diagram.
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born 1934/ died 1968 was a Soviet pilot and the first person to journey into space and orbit around the world.
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Started 1972 was the fourth human spaceflight program carried out by the national aeronautics and the space administration which transported earth’s orbit crew.
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Launched in 1996 it was designed as a technology demonstration of a new way to deliver an instrumented lander and the first-ever robotic rover to the surface of the red planet. Pathfinder not only accomplished this goal but also returned an unprecedented amount of data and outlived its primary design life.
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Started in 1997 was a collaboration between NASA, the European Space Agency, and the Italian Space Agency to send a probe to study the planet Saturn and its system, including its rings and natural satellites.
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born 1930/ died 2012 was an American astronaut and engineer, he also was the first man to walk on the moon.
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born 1921/ died 2016 was a U.S. Marine corps and an astronaut and became the first american to orbit the earth 3 times.
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Launched in 2018 is a partially reusable heavy-lift launch vehicle designed and manufactured by Space X.
