Chen History of Astronomy

Aristotle

384 BCE

384-322 Aristotle was born in the city of Stagira, Chalkidiki, in central Macedonia. He died in 322 BC. Aristotle was considered the " Father of Western Philosophy".

Ptolemy

100

100-168 Ptolemy lived in the city of Alexandria in Egypt. Ptolemy is a mathematician, geographer, astronomer, and astrologer. He also wrote in Koine Greek

Copernicus

1473

1473-1543 Copernicus is a mathematician and astronomer. He made a model of the earth and universe where the sun is in the center instead of the earth. He is know for Heliocentric, Quantity theory of money, and Gresham's law.

Johannes Kepler

1517

1571-1630 Johannes Kepler is a German astronomer, mathematician, and astrologer. He is know for Kepler's laws of planetary motion, Kepler conjecture, and Rudolphine Tables. A famous quote that he said is " Nature uses as little as possible of anything".

Tycho Brahe

1546

1546-1601 Tycho Brahe was born in the Danish peninsula of Scania. He is a Danish nobleman, astronomer, and writer. He is known for the Tychonic system, Rudolphine Tables.

Galileo

1564

1564-1642 Galileo is an Italian astronomer, engineer, and physicist. He is sometimes called the "father of observational astronomy", the "father of the scientific method", the "father of modern physics", and the "father of modern science". He is known for Kinematics, Analytical dynamics, Telescopes, and Heliocentric.

Hans Lippershey

1570

1570-1619 Hans Lippershey is part of the telescope invention because he was the first one to try to get a patent for it. He is know for Inventor of the telescope.

Reflecting and Refracting Telescopes

1608

1608-1609 The difference between a reflecting and refracting telescope is that the refracting telescope uses Convex lens to focus light and the reflecting telescopes uses a curved mirror in place of the objective lens.

Giovanni Cassini

1625

1625-1712 Giovanni Cassini is an Italian mathematician, astronomer and engineer. He was born in Perinald. He is known for Cassini Division, Cassini's laws, and Cassini oval.

Sir Isaac Newton

1643

1643-1724 Sir Isaac Newton is an English mathematician, physicist, astronomer, theologian, and author. He is known for Classical Mechanics, Newtons law of universal gravitation, Infinitesimal Calculus, Newtons' Law of Motion, Optics, Binomial Series, and Newtons Method.

William Herschel

1738

1738-1822 William Herschel is a British astronomer. He discovered Uranus and two moons. He also formulated a theory of Stellar's evolution.

Percival Lowell

1855

1855-1916 Percival Lowell is an american businessman, author, mathematician, and astronomer. He founded the Lowell observatory. He is known for 793 Arizona Asteroid discoveries and Martian Canals.

Ejnar Hertzsprung

1873

1873-1967 Ejnar Hertzsprung is a Danish chemist and astronomer. He is known for Hertzsprung–Russell diagram. He discovered the 1627 Ivar and 1702 Kalahari.

Albert Einstein

1879

1879-1955 Albert Einstein was a German-brought into the world hypothetical physicist who built up the hypothesis of relativity, one of the two mainstays of present-day material science. His work is additionally known for its impact on the reasoning of science. He is best known to the overall population for his mass– vitality identicalness recipe E = mc², which has been named "the world's most acclaimed condition".

Edwin Hubble

1889

1889-1953 Edwin Powell Hubble was an American cosmologist. He assumed an essential job in building up the fields of extragalactic stargazing and observational cosmology and is viewed as a standout amongst the most critical space experts ever. He is won the Legion of Merit, Bruce Medal, Franklin Medal, and Gold Medal of the Royal Astronomical Society.

Karl Jansky

1905

1905-1950 Karl Guthe Jansky was an American physicist and radio designer who in August 1931 originally found radio waves exuding from the Milky Way. He is viewed as one of the establishment figures of radio cosmology. He invented the Radio Telescope.

John Glen

1921

1921-2016 John Glenn is a United States Marine Corps pilot, build, space traveler, businessperson, and government official. He was the main American to circle the Earth.

Neil Armstrong

1930

1930-2012 Neil Armstrong was an American space traveler and aeronautical specialist who was the principal individual to stroll on the Moon. He was a maritime pilot, aircraft tester, and college educator.

Sputnik

1957

1957 Sputnik was the main fake Earth satellite. This unexpected achievement hastened the American Sputnik emergency and set off the Space Race. The dispatch introduced new political, military, mechanical, and logical advancements.

Yuri Gagarin

1961

1961 Yuri Gagarin was a Soviet pilot and cosmonaut. He turned into the main human to travel into space when his Vostok rocket finished one circle of the Earth on 12 April 1961.

The Apollo Program

1963

1963-1972 The Apollo program is the third United States human spaceflight program completed by the National Aeronautics and Space Administration.

First Space Shuttle Flight

1981

1981 The Space Shuttle program was the fourth human spaceflight program completed by the National Aeronautics and Space Administration.

Mars Pathfinder Expedition

1996

1996 Mars Pathfinder is an American mechanical shuttle that handled a base station with a meandering test on Mars. This mission was the first of a progression of missions to Mars.

Cassini Orbiter

1997

1997 The Cassini mission, ordinarily called Cassini was built to Saturn and its framework, including its rings and normal satellites.

Hubble Space Telescope

Jan 17, 2019

1-17-2019 The Hubble Space Camera was not working because it detected high voltage levels. Scientist brought it back and realized that it wasn't the voltage level it was a telemetry issue with the camera. They eventually fixed it and brought the camera back to life and sent it back to space.