-
100
Claudius Ptolemy
-
100
Claudius Ptolemy
-
1473
Nicolaus Copernicus
-
1473
Nicolaus Copernicus
-
1564
Galileo Galilei
-
1564
Galileo Galilei
-
1571
Johannes Kepler
-
1571
Johannes Kepler
-
Edmond Halley
-
Edmond Halley
-
William Herschel
-
William Herschel
-
Discovery of the first four asteroids
-
Discovery of the first four asteroids
-
Urbain Le Verrier
-
Urbain Le Verrier
-
Clyde Tombaugh
-
Clyde Tombaugh
-
Voyagers 1 and 2
-
Voyagers 1 and 2