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Hans Lippershey
Lippershey was a dutch spectacle maker, He is famous for the patent/invention of the refracting telescope. -
Galileo
Galileo was an Italian astronomer who studied Venus and how it orbited the sun, and Jupiter and 4 large moons that orbited around it. -
Isaac Newton
Newton figured out that the lens refracts light, he used mirrors instread of lenses in his telescopes. -
William Herschel
Herschel was a British astronomer and he made his first telescope in 1774. He is known for his discovery of Uranus, which he discovered on March 13th, 1781. -
George Hale
Hale was an American solar astronomer and discovered magnetic fields in sunspots, and was the key figure in constructing several of the world's best telescopes. -
Mount Wilson Observatory
The Mount Wilson Observatory is in Los Angeles, and it contains the Hooker telescope, which was the largest aperture telescope in the world from its completion in 1917. This observatory was built by George Hale and was used by Edwin Hubble -
Edwin Hubble
Hubble was an American astronomer and he helped establish the field of extragalactic astronomy. He is known for showing that the universe is expanding and he correctly identified other galaxies beyond the Milky-Way. -
Arno Penzius and Robert Woodrow Wilson
Penzius and Wilson accidently discovered osmic background radiation when testing the Holmdel Horn Antenna. They came to a conclussion that cosmic background radiation was from the beginning of the Big Bang. -
Hubble Space Telescope
The Hubble Space Telescope was launched in 1990 and is still in operation today. The pictures that it takes have led to break throughs in astrophysics such as accurately determining the rate of the expansion of the universe. -
Wilkinson Microwave Anisotropy Probe (WMAP)
WMAP was a spacecraft operating in 2001-2010. It measured the cosmic microwave background, which is the radiant heat remaining from the Big Bang. Its measurements played a key role in establishing the current Standard Model of Cosmology.
