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Claudius Ptolemy
Ptolemy was an astronomer and mathematician. He believed in the Geocentric theory which is a theory where people believe that Earth is the centre of the universe. -
Feb 19, 1473
Nicolaus Copernicus
Nicolaus Copernicus was the first modern European scientist to propose that Earth and other planets revolve around the Sun or otherwise known as the Heliocentric Theory of the universe. -
Feb 15, 1564
Galileo Galilei
Galileo Galilei is considered the father of modern science. He made major contributions to the fields of physics, astronomy, cosmology, mathematics and philosophy. Galileo Galilei discovered Ganymede, Europa, lo, Callisto and the Rings of Saturn. -
Dec 27, 1571
Johannes Kepler
Johannes Kepler discovered that the orbit of Mars was an ellipse. In the year 1609, he published the book called " Astronomia Nova", which talks about his discoveries, which are now known as Kepler's first 2 laws of planetary motion. He also invented the Keplerian Telescope. -
Edmond Halley
Edmond Halley was an English scientist and he is best known for predicting the orbit of the comet. That comet was later named after him named Halley's Comet. He is remembered foremost as an astronomer. He also made significant discoveries in the fields of geophysics, mathematics, meteorology and physics. -
William Herschel
William Herschel was an astronomer and a composer of music. William discovered Uranus, Enceladus, Titania, Mimas, NGC 5713, Oberon, NGC 4473, NGC 755, NGC 972 and NGC 4074. -
Discovery of the first four asteroids
The first four asteroids discovered were 2 Pallas, 4 Vesta, 3 Juno and Ceres. 3 Juno was discovered by Karl Ludwig Harding. 2 Pallas was discovered by Heinrich Wilhelm Matthias Olbers. 4 Vesta was discovered by Heinrich Wilhelm Matthias Olbers. Ceres was discovered by Giuseppe Piazzi. -
Urbain Le Verrier
Urbain Le Verrier studied Neptune and Uranus. He also discovered Neptune. -
Clyde Tombaugh
Clyde Tombaugh was an astronomer and built his first telescope when he was only 20 years old. That telescope led him to finding the dwarf planet, Pluto. -
Voyagers 1 and 2
The Voyager 1 was launched on the 5th of September, 1977. It had the power of 470 watts and costed €212052875.77. It was manufactured by the Jet Propulsion Laboratory and it was launched on the Cape Canaveral Air Force Station Space Launch Complex 41. The Voyager 2 was launched on the 20th of August, 1977.It costed €758,870,500. Voyager 2's SATCAT no. was 10271. The Voyagers are probably destined to wander the Milky Way.
