-
2000 BCE
First solar-lunar calendars
It was create on Egypt and Mesopotamia, was create a long of 2,000 years B.C. -
1619 BCE
Third Law
The Third Law of Planetary Motion is announced by Kepler in his work Harmonice Mundi on Germany about 1619 A.D. -
1609 BCE
Milky Way Galaxy
Galileo uses telescope for astronomical purposes. He discovers 4 Jovian moons, the Moon's craters and the Milky Way galaxy on Italy about 1609 A.D. -
1609 BCE
Discovers of Galileo
Galileo uses telescope for astronomical purposes. He discovers 4 Jovian moons, the Moon's craters and the Milky Way galaxy on 1609 at Italy -
1608 BCE
telescope
Hans Lippershey, a Dutch spectacles maker invents the telescope.
on 1608 A.D. -
1572 BCE
Cassiopeia.
Tycho Brahe discovers a supernova in constellation of Cassiopeia on Denmark about 1572 A.D. -
13 BCE
Big Bang Theory
It was a explosion of many atoms between 13 and 20 billion years ago that create the universe. -
Sep 10, 1543
heliocentric theory
Copernicus publishes his heliocentric theory of the Universe on Poland on 1543 A.D. -
Reflecting telescope
The first reflecting telescope was built by Newton on 1699 at England -
discovered of Uranus
it was discovered on 1781 A.D on England by Herschel -
mooons of mars
Asaph Hall discovers Phobos and Deimos, the moons of Mars on 1877 at U.S.A -
giant and dwarf stars
Hertzsprung describes giant and dwarf stars on 1908 A.D at Denmark -
galaxies
Hubble shows that galaxies exist outside the Milky Way galaxy on 1923 A.D. U.S.A -
Pluto
Clyde Tombaugh discovers Pluto on 1930 A.D at U.S.A -
sputnik
Sputnik, first object to orbit the Earth, launched by the Russians on 1957 A.D. at Russia -
uranus rings
Discovery of Uranus' ring on 1977 A.D. at U.S.A.
