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322 BCE
Aristotle
Born in 384 BC and died in 322 BC, proved the earth was spherical, that it was the center of the universe, and sun the moon and the stars rotated around the earth. -
120 BCE
Hipparchus
Born in 190 BC and died in 120 BC, discovered the precession of the equinoxes, calculated the length of the year to within 6 1/2 minutes, compiled the first known star catalog, calculated the difference between the earth and the moon, and made an early formulation of trigonometry. -
170
Ptolemy
born in 100 AD and died in 170 AD, ancient astronomer, geographer, and mathematician who considered the Earth the center of the universe. -
May 21, 1543
Copernicus
born Feb. 19 1473 and died May 21, 1543 ,Nicolaus Copernicus was a Polish astronomer who put forth the theory that the Sun is at rest near the center of the Universe(Heliocentric), and that the Earth, spinning on its axis once daily, revolves annually around the Sun.Father of the scientific method -
Tycho Brahe
born December 14, 1546 and died Oct. 24, 1601, Alchemist, astrologer, astronomer, supporter of the geocentric theory of the solar system, and made accurate observations of planetary positions. -
Refracting Telescope
made in 1608 by Hans Lippershey and it uses two lenses unlike the reflecting telescope. -
Hans lippershey
1570-1619, a dutch eyeglass maker that was associated with the invention of the telescope cause he’s the first to obtain a patent. His telescope was 3x. -
Johannes Kepler
born in 1571 and died in 1630 was a german astronomer that discovered three major laws of planetary motion, and worked w/ Brahe. Discovered that the orbits of the planets are not circular but oval. -
Galileo
Feb. 15 1564 and died Jan. 8 1642, from Italy Italian Polymath that discovered Jupiter’s moons Lo, Europa, Ganymede, Callisto. He was a central figure transition from natural philosophy to modern science. One of the first telescope makers. Discovered stars aren’t fixed to shells, and discovered sunspots. -
Reflecting Telescope
made in 1668 by Isaac Newton , and was different from the refracting telescope because it used two mirrors instead of two lenses. -
Giovanni Cassini
born in 1625 died in 1712 was an Italian that discovered the Cassini Division which was the dark gap between Saturn’s a and b rings, also the four of Saturn’s moons, and was one of the first to record observations of the zodiac light. -
Sir Isaac Newton
born in 1642 and died in 1727, three laws of motion, invented the reflecting telescope. -
William Herschel
1738-1822 Discovered Uranus and its moons, 2 more of Saturn’s moons, believed he found polar ice on mars leading to the studies hoping to find water on mars. He determined the temperature of colors. -
Percival lowell
1855 - 1916, discovered the planet Pluto and studied the canalis on mars. Built the Lowell observatory in Flagstaff, AZ to study Mars. -
Karl Jansky
1905-1950 Discovered radio waves are coming from earth.Radio waves are the longest types o.f energy ways -
Edwin Hubble
1889-1953 using the color of star, discovered that the universe is expanding. Hubble’s law, galaxies are moving away from each other. Basis of the big band theory. -
Sputnik
1957 October, 4 7:28 The importance of sputnik to the U.S. In the midst of the cold war, Russia was successful in launching the first satellite into space to orbit Earth. Putting the Soviet Union ahead of the U.S. Science & space travel became a new priority for the U.S. and the educational system. In 1958 president Dwight Eisenhower created NASA Begins “The Space Race” -
Yuri Gagarin
1961 First human to orbit earth 108 minutes. -
Period: to
Apollo Program
1961- 1972 Designed program to bring them to the moon and make sure they get back. -
John Glenn
1921- 2016 (1962)- 1st U.S. Citizen to orbit Earth 3x -
Ejnar Hertzsprung
1873- 1967 Danish chemist and astronomer, born in Copenhagen, Denmark. -
Neil Armstrong
1969 walks on the moon. Apollo 11 was the spaceflight that landed the first two humans on the moon. Mission commander Neil Armstrong and pilot Buzz, Aldrin, both American, landed the lunar module Eagle on July 20, 1969. -
First space Shuttle Flight
1981- Launched straight up, detaches and when comes down lands like a plane -
Mars pathfinder
1996-Launched Dec.4, 1996 than landed July, 4 by NASA and costed 150 million dollars, and it was an american robotic spacecraft that landed on mars in 1997. -
Cassini Orbiter
Oct.15 1997- sep.15 2017, and was a collaboration between NASA, the European Space Agency, and the Italian Space Agency to send a probe to study the planet Saturn and its system, including its rings and natural satellitesAlso its named after Jean-Domenique Cassini, who discovered the Saturnian satellites Lapetus in 1671, Rhea in 1672, and both Tethys and Dione in 1684. -
SpaceX Falcon Heavy
Feb, 6 2018 Falcon Heavy is a partially reusable heavy-lift launch vehicle designed and manufactured by SpaceX.
