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Edwin Hubble

astronomy
George Ellery Hale – Large Telescopes and the Spectroheliograph

George Ellery Hale – Large Telescopes and the Spectroheliograph

Tabea Tietz
On June 29, 1868, American solar astronomer George Ellery Hale was born. He is best known for his discovery of magnetic fields in sunspots, and as the leader or key figure in the planning or construction of several world-leading telescopes, including the 200-inch Hale reflecting telescope at Palomar Observatory. Like buried treasures, the outposts of the universe have beckoned to the adventurous from immemorial times. Princes and potentates, political or industrial, equally…
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astronomy
Alan Sandage and the Discovery of the Quasars

Alan Sandage and the Discovery of the Quasars

Tabea Tietz
On June 18, 1926, American astronomer Allan Rex Sandage was born. Sandage determined the first reasonably accurate values for the Hubble constant and the age of the universe. Foremost, he is also credited with the discovery of the 3C 48 quasar, i.e. quasi-stellar radio sources which are the most energetic and distant members of a class of objects called active galactic nuclei. The Discovery of Quasars Between 1917 and 1922, it became…
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physics
Thomas Gold and the Steady-State Theory

Thomas Gold and the Steady-State Theory

Tabea Tietz
On May 22, 1920, Austrian-born American astrophysicist Thomas Gold was born. Gold was one of three young Cambridge scientists who in the 1950s proposed the now mostly abandoned ‘steady state‘ hypothesis of the universe. His work crossed academic and scientific boundaries, into biophysics, astronomy, aerospace engineering, and geophysics. Thomas Gold – Youth and Education Thomas Gold was born in Vienna, Austria to Max Gold, a wealthy Jewish industrialist (pre-war) who ran one of…
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astronomy
Harlow Shapley and the Size of the Milky Way

Harlow Shapley and the Size of the Milky Way

Tabea Tietz
On November 2, 1885, American astronomer Harlow Shapley was born. Shapley is best know for having correctly estimated the size of the Milky Way Galaxy and the sun’s position within it. Harlow Shapley – Early Years Harlow Shapley was born in Nashville, Missouri and dropped out of school after fifth grade. However, later on he managed to return to school and complete a six-year high school program in only two years. At…
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astronomy
Lyman Spitzer and the Space Telescope

Lyman Spitzer and the Space Telescope

Harald Sack
On June 26, 1914, American theoretical physicist, astronomer and mountaineer Lyman Strong Spitzer was born. Researching in star formation and plasma physics, he is probably best known for being the first to conceive the idea of telescopes operating in outer space. Thus, he is also the namesake of NASA’s Spitzer Space Telescope. Well mountaineer and astronomer at the same time, I guess we never had a fellow like Lyman Spitzer up to…
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astronomy
Fritz Zwicky and the Existence of Dark Matter

Fritz Zwicky and the Existence of Dark Matter

Tabea Tietz
On February 14, 1898, Swiss astronomer Fritz Zwicky was born. He is best known for his proposal of he existence of dark matter and counts as one of the most important astronomers of the 20th century. “To eliminate the discrepancy between men’s plans and the results achieved, a new approach is necessary. Morphological thinking suggests that this new approach cannot be realized through increased teaching of specialized knowledge. This morphological analysis suggests that the…
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astronomy
The Hale Telescope at Palomar Observatory

The Hale Telescope at Palomar Observatory

Tabea Tietz
On January 26, 1949, the Hale telescope at Palomar Observatory sees first light under the direction of Edwin Hubble,[4] becoming the largest aperture optical telescope (until BTA-6 was built in 1976). George Ellery Hale George Ellery Hale was a solar astronomer, who was born and grew up in Chicago, Illinois [5]. He studied at MIT, Harvard and in Berlin. He is mostly known for his invention of the spectrohelioscope during his time at…
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astronomy
The Universe goes beyond the Milky Way – thanks to Edwin Hubble

The Universe goes beyond the Milky Way – thanks to Edwin Hubble

Tabea Tietz
On November 20, 1889, American astronomer Edwin Hubble was born. He is best known for his role in establishing the field of extragalactic astronomy and is generally regarded as one of the most important observational cosmologists of the 20th century. “Equipped with his five senses, man explores the universe around him and calls the adventure Science.” – Edwin Hubble (1929) Edwin Hubble – Early Years Although Edwin Hubble earned pretty good grades in…
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physics
Georges Lemaître and the Origins of the Big Bang Theory

Georges Lemaître and the Origins of the Big Bang Theory

Harald Sack
On June 20, 1966, Belgian priest, astronomer and professor of physics Georges Lemaître passed away. He was the first person to propose the theory of the expansion of the Universe, widely misattributed to Edwin Hubble, and is best known for his proposal of what became known as the Big Bang theory of the origin of the Universe. “We want a fireworks theory of evolution. The last two thousand million years are slow…
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astronomy
Sir Arthur Eddington – The Man who Proved Einstein’s General Relativity

Sir Arthur Eddington – The Man who Proved Einstein’s General Relativity

Tabea Tietz
On November 22, 1944, British astrophysicist and philosopher Sir Arthur Stanley Eddington passed away. He became famous for his 1919 solar eclipse expedition to Principe, where he conducted astrophysical experiments to give proof for Albert Einstein‘s seminal theory of general relativity. “At terrestrial temperatures matter has complex properties which are likely to prove most difficult to unravel; but it is reasonable to hope that in the not too distant future we shall be…
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