The year Copernicus was born.
1473
The year Galileo was born.
1564
This is where he was born.
Alexandria, Egypt.
He was discouraged from being a priest.
Galileo
Copernicus's original last name.
Koppernigk.
He refind this object by making one so powerful that he could see the planet Jupiter and four of its moons.
The telescope.
The theory that the sun and all the planets revolve around Earth is this.
A geocentric theory.
Legend has it he died peacefully when he saw his published book.
He avoided doing this, because it would have been very controversial.
Publishing the book he wrote about his studies.
Galileo spent time under house arrest because of this.
The religious authorities of the day took issue with his scientific concepts.
The tool that Ptolemy used to make his celestial observations.
His eyes. The telescope was not yet invented.
This astronomy lost his nose in a sword fight.
Tycho Brahe.
Copernicus' model that explain that Earth is not the center of the universe.
What is the heliocentric theory.
He suppored this theory that says the sun, not the Earth, is the center of the heavens.
The heliocentric theory.
The name of Ptolemy's published book on astronomy.
The Greatest in English. al-Magisti in Arabic, or the Almagest in Latin.
He observed the movements of the planets and held that that the Earth is the center of the universe.
Claudius Ptolemy