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Claudius ptolemy
Claudius Ptolemy had made the original universe theory, saying that the sun is at the centre of the solar system geocentric theory, predict the positions of the planets as well as find out the solar and lunar phases -
Feb 19, 1473
Nicolaus Copernicus
Nicolaus Copernicus had prived that the universe was following the heliocentric theory, NOT the geocentric theory. He discovered this around 15076 and 1515 -
Feb 15, 1564
Galileo Galilei
Galileo Galilei made many discoveries including, Finding craters and mountains on the moon, seeing all the venus phases, seeing the milky way stars and also made two things including, a telescope and the first pendulum clock -
Dec 27, 1571
Johannes Kepler
This person had made the 3 major laws of planetary He made his first two laws in 1609 and the third one in 1619 -
Edmond Halley
Edmond Halley had only discovered one thing in his life and that was a comet, which was named after him and is now called the Halley's comet -
William Herschel
He found the planet Uranus and its two moons, as well as formulating the theory of the stellar evolution -
Discovery of the first four asteroids
The first asteroid, Ceres was not found intentionally, but by accident in 1801 by one person. The other asteroids were found over the next few years. -
Urbain Le Verrier
Urbain Le Verrier had always believed that there was a SECOND asteroid belt between the sun and Mercury, we now know that this second belt is NON - existant -
Clyde Tombaugh
Clyde Tombaugh had discovered two things, which was discovering what we now consider a dwarf planet, Pluto in 2006 and also discovered what we call now the Kuiper Belt in 1930 -
Voyagers 1 & 2
Voyagers 1 and 2 were originally sent in space in 1977 and has now discovered 4 of the gas giants (Jupiter, Saturn, Uranus Neptune). Its ultimate goal was to explore the 'outer' solar system. We can still have some contact with the voyagers 1 and 2
