-
Period: Feb 19, 1473 to May 24, 1543
The lifespan of Nicholaus Copernicus
he was the one who first theorized the sun was center of the universe -
Period: Feb 15, 1564 to
Lifetime of Galileo
Lived in Italy -
Period: Dec 27, 1571 to
Lifetime of Jahannes Keplar
Laws of planetary motion -
The first reflecting telescope is made
In England Sir Isaac Newton discovered how to make a reflecting telescope -
The non-spherical mirror is ground
Hadley did it -
A lens doublet withoutchromatic aberrationis made
In 1729, Hall figured out how
to combine lenses of different
shapes and materials to fix the
chromatic aberration problem. -
Spiral nebulae are discovered
lord rosse did this -
The first radio telescope is built
by Grote Reber