-
100
aristotle
384-322 b.c.
from greece
he discovered that earth is round because it always cast a curved shadow on the moon when it passed between earth and the sun -
200
Eratosthenes
276-194 b.c.
egypt
believed that the earths circumference was 39400 -
300
Hipparchus
second century b.c.
greece
stars catalog that determine 850 stars locations that was divided into 6 groups -
Aug 14, 1473
Nicolaus Copernicus
1473-1543
Poland
was convinced that earth was a planet like the rest of the other planets that were known and was said that the sun was in the center -
Aug 14, 1546
Tycho Brahe
1546-1601
Denmark
his observations on mars were the most precise out of everyone that had made observations before him -
Aug 14, 1564
Galileo Galilei
1564-1642
italy
described the behavior of moving objects. For example the gravitational movement -
Aug 14, 1571
Johannes Keplar
1571-1630
germany
discovered the 3 laws of planetary motion -
Sir Isaac Newton
1642-1727
English/UK
first to formulate and test the law of unicersal gravitation -
edwin hubble
1889-1953
montana/ US
he found out that there was more then just the milky way galaxy and started to find out more about space. His telescope is probably the most famous type of telescope and has it named after him
