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Period: 100 to
Pyolemy
From Greese
He thought that all the planets revolved aroud earth. He developed a geocentric model. -
Period: Mar 23, 1473 to Mar 23, 1543
Copernicus
From Poland.
He developed a heliocentric model- all planets revolve around the sun. -
Period: Mar 23, 1546 to
Brahe
Denmark
Combined the geocentric and the heliocentric models and made the most acurate astronomical observations. -
Period: Mar 23, 1564 to
Gallileo
Italy
He improved the telescope and became one of the first people use use one. He discovered craters and mountains on the Earth’s moon, four of Jupiter's moons, sunspots on the sun, and the phases of Venus. -
Period: Mar 23, 1571 to
Kepler
Wrote laws about planetary motion -
First reflecting telescope is built
England
Issac Newton built it
Gallileo improved it -
Spiral nebulae was discovered
Was first found by William Parsons
Was found in the sky. -
Scientists learn how to put silver on glass
German Chemists
Germany -
The first permanent solar telescope is built.
On top of mount wilson.
Created by George Ellerly Hale. -
Computers control and position telescopes
Created by Russians.
Probably somewhere in Russia.