-
Jan 1, 1473
nicholas copernicus
propposed a model of the earth with the sun in the middle. -
Jan 1, 1546
tycho brahe
created angle measuring dence -
Jan 1, 1564
galileo galilei
decriptions of the behavior of moving objects -
giovanni cassini
discovered four of saturns moons -
sir issac newton
first to formulate and test the low of universal gravitation -
edmond haley
developed a mechanical explantion for planetary motion -
charles messier
documented obervations of mercury -
william herschel
discovered uranus -
anne jump cannon
classified 225,000 stars -
albert einstein
theory of relativity -
frank drake
1 of the pioneers i the search for extrater restiral -
carl sagan
well known scientist during the 1970's 80's -
stephen hawking
author of several populars science books and black holes -
edwin hubble
established the field of extra galatic astronomy
