-
1570 BCE
Hans Lippershey
Hans Lippershey lived from 1570-1619. He invented the refracting teliscope. He was a specticale maker which is an eyeglass maker. It is still unclear if he was the first to invent the telescope. -
384 BCE
Aristotle
Aristotle was a greek philosphipor and astronomer that lived from 384 bc to 322 bc. He is considered one of the best thinkers in politics known as the ¨grandfather of science¨ He was taught by the philospher known as plato and then opened up in own school in Lyceum Athens. He belived in a geocentric universe which is that all planets are perfect spheres and earth is not. Even though he is wrong he is so respected for his answers because it was believed for such a long time. -
100
ptolemy
Ptolemy was a atronomer, mathmatictian, geographer. He lived from 100 to 168 AD. Ptolemy believed that the earth was centered around our universe. This is known as the ptolemic system. He lived in the city of Alexandria in the roman province of Egypt. -
1473
Copernicus
Copernicus was a renaissance mathematician and astronomer. He lived from 1473 through 1543. He believed that instead of the earth being the center of the universe he believed that the sun was the center of the universe. This is known as the heliocentric or Sun centred system. -
1546
Tycho Brahe
Tycho Brahe was a danish nobleman and astronomer. He lived from 1546-1601. He believed in a geocentric universe. He is best known for his astronomical observations. -
1564
Galileo
Galileo lived from 1564-1642. He is known as the "father of modern science." He is an italian astronomer and philosipher and mathmitician. He supported the copernican theroy. He proved that moon revolved around the sun by using his simple made teliscope to watch the phases of the moon. Galileo aswell invented the thermometer. -
1571
Johannes Kepler
Johannes Kepler lived from 1571-1630. He was a german astronomer, mathematician, and astrologer. He discovered that the earth and planets revolve around the sun. He discovered 3 laws of planetary motion. -
Reflecting vs. Refracting
The difference between the reflecting vs. Refracting is that is how they manipulate the incoming light in order to magnify the image. A refracting telescope uses different lenses that focus on the light as it moves towards the other end of the telescope. A reflecting telescope has a mirror and the light bounces off of the mirror to show an image. -
Giovanni Cassini
Giovanni Cassini was a Italian mathematician and astronomer that lived from 1625- 1712. He lived in France and discovered some of Saturn's moons and that the rings around Saturn are two separate rings. As well as how long it takes Jupiter to make one full rotation. He also measured the distance between mars. -
Sir Isaac Newton
Sir Isaac Newton was a mathematician, Astronomer, author, and physicist that lived from 1643-1724. He is famous for discovering the laws of motion. He is known as one of the most influential scientists ever. He discovered the physics of gravity when an apple fell on his head. He invented the reflecting telescope which uses mirrors to reflect light and form an image. -
william Herschel
William Herschel was a British astronomer and composer that lived from 1738-1822. William discovered Uranus and two of its moons. Uranus is the seventh planet away from the sun. He also discovered the first shaped description of our milky way using a telescope. He discovered that Mars atmosphere is very thin. The discovery of satellite Mimas. he discovered double stars. -
Percival Lowell
Percival Lowell lived from 1855 through 1916. He was an american businessman, author, mathematician, and astronomer. He predicted that there was a planet behind Neptune. He built a private observatory in Flagstaff Arizona to study Mars. In this observatory they discovered Pluto here. during the discovery of Mars they found that canals which is another clue that may prove that there is life on Mars. -
Ejnar Hertzsprung
Ejnar Hertzsprung lived from 1873 through 1967. He was a Danish chemist and astronomer. He classified different types of stars by their different colors and their absolute brightness. He created the Luminosity Scale of Cepheid variable stars. This is a tool for the measurement of intergalactic distances. -
Albert Einstein
Albert Einstein lived from 1879 through 1955. He is known as one of the most influential of the 20th century. His work of everything he had done in his life led to many advancements in our world. He invented the theory of relativity. which is one of the two pillars in modern physics. He invented photons which are is a group of electromagnetic energy. It makes up all of the light. They interact with matter. At first most scientists did not believe him. -
Karl Jansky
Karl Jansky lived from 1905 through 1950 he was american physicist and radio engineer. He discovered radio waves. He is known as the father of Radio astronomy.Radio astronomy is the study of the radio waves from stars and galaxies. Radio waves are naturally formed from lightning and astronomical objects. -
John glenn
John Glenn lived from 1921-2016 He was engineer, astronaut, and United States senator. In February 1962 he orbited the earth three times in the Capsule Friendship Seven. Then in 1988 he went on another spacecraft known as the STS-95. -
Neil Armstrong
Neil Armstrong was born in 1930 and died in 2012. He was an astronaut and aeronautical engineer . He was the first man to ever walk on the moon along with Buzz Aldrin and Micheal Collins. At the age of 38 he said the words "That's one small step for a man one giant leap for mankind." -
Yuri Gagarin
Yuri Gagarin was born on March 9, 1934 and died on March 27, 1968 from a plane crash. He was soviet pilot and cosmonaut. He was the first person to ever fly into space. His flight was on April 12, 1961 and it lasted 1 hour and 48 minutes as he circled the Earth and made one full orbit and a little bit of another. -
Edwin Hubble
Edwin Hubble was an american astronomer. He made 2 very important discoveries in modern astronomy. Which are that there are more that 1 galaxy. Also that galaxies move at increasing speeds. -
Sputnik
Sputnik was the first artificial satellite. Sputnik had a diameter of 22 inches and weighed 184 pounds and circled around the Earth once every hour and 36 minutes so a total of 96 minutes. Traveling at 18,000 miles an hour. Sputnik was ten times the size of the first U.S. satellite. -
The apollo Program
The Apollo program started in 1963 and has made a total of eleven spacecrafts. It has gotten 6 spacecrafts to the moon and a total of two different types of rockets in the Apollo program. The first manned mission in the Apollo program was Apollo 8 and they did not land on the moon they just orbited around it. -
First space shuttle program
The First space Shuttle Program Began on April 12, 198. It was named STS-1. STS-1 it had a crew of 3. John W. Young and Robert L Crippen. The Mission lasted for 2 days 6 hours and 20 minutes and 53 seconds. It was a test flight. This shuttle made a total of 36 orbits around the earth. It was 1,074,000 miles long. -
Mars pathfinder Expedition
The MARS pathfinder expedition landed on mars in 1996. It was an american robotic spacecraft .Mars Pathfinder was launched on December 4, 1996, and landed on Mars seven months later, on July 4, 1997. It went through mars atmosphere. -
Cassini Orbiter
Cassini Orbiter is a collaboration between NASA, European Space Agency and Italian Space Agency. The Cassini Orbiter is one of the most ambitious missions ever launched into space. Cassini orbiter took accurate measurements of atmospheric conditions. It flew around Saturn and went into the planets atmosphere, on Friday, September 15th, 2017. -
Dream chaser
The Dream Chaser is a private spacecraft launched into space from Nevada. It is a space plane. It is 30 feet long. It is designed to resupply the International Space Station with both pressurized and
non-pressurized cargo.
