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Feb 19, 1478
Nicholas Copernicus
he identfied the concept of a heliocentric solar system in which the sun rather then the earth is center of the solar system -
Dec 14, 1546
Tycho Brahe
The solar system and accurate postions of more then 777 fixed stars -
Feb 15, 1564
galileo galilie
Italian scientist and scholar Galileo made pioneering observations that laid the fundation for modern pysics ad astronomy -
Dec 27, 1571
Johannes Kepler
He came up with the law of planetary motion -
Giovanni Cassini
Discovered four satellites of the plant Saturn and noted the divsion of the rings of Saturn -
Isaac Newton
english physicist and mathematician sir Isaac Newton most famous for his law of gravitation was instrumental in the scientific revolution of the 17t century. -
Edmand Halley
Halley was an english asronomer and mathematician who was the first to calculate the orbit of the comet later named after him. -
Charles Messier
He put together a catolog of over one hundred sky comets this was known as nebulae -
William Herschel
Herschel discoved the planet uraus and several moons around other gas giants -
Annie Jump Cannon
Annie was a pioneering astronomer resposible for the classification of hundreds of thousands of stars -
Albert Einstein
Einstein developed the theroy of relativity -
Edwin Hubble
Edwin revolutionized the field of astrophysics his research helped prove that the universe is expanding and he created a classification system for galaxies hat have been used for several decads -
Frank Drake
englis admiral sir Francis Drake circumnavigaed the globe and defeat the spanish and was the most renowned seaman of the Elizabethan era. -
Carl Sagan
He is know for his research in extraterrestrial life -
Stephen Hawking
He discovered that blackoles cannot decrease in blackholes
