HomeAboutLogin
       
       
 
64 years

   
Edwin Powell Hubble was an American astronomer who played a crucial role in establishing the field of extragalactic astronomy and is generally regarded as one of the most important observational cosmologists of the 20th century. Hubble is known for showing that the recessional velocity of a galaxy increases with its distance from the earth, implying the universe is expanding, known as "Hubble's law" although this relation had been discovered previously by Georges Lemaître, who published his work in a less visible journal.

Edwin Hubble is also known for providing substantial evidence that many objects then classified as "nebulae" were actually galaxies beyond the Milky Way. American astronomer Vesto Slipher had provided the first evidence for this argument almost a decade before. Hubble's name is most widely recognized for the Hubble Space Telescope which was named in his honor, with a model prominently displayed in his hometown of Marshfield, Missouri.

More on this Website

 
 
Edwin Powell Hubble was an American astronomer who played a crucial role in establishing the field of extragalactic astronomy and is generally regarded as one of the most important observational cosmologists of the 20th century. Hubble is known for showing that the recessional velocity of a galaxy increases with its distance from the earth, implying the universe is expanding, known as "Hubble's law" although this relation had been discovered previously by Georges Lemaître, who published his work in a less visible journal.

Edwin Hubble is also known for providing substantial evidence that many objects then classified as "nebulae" were actually galaxies beyond the Milky Way. American astronomer Vesto Slipher had provided the first evidence for this argument almost a decade before. Hubble's name is most widely recognized for the Hubble Space Telescope which was named in his honor, with a model prominently displayed in his hometown of Marshfield, Missouri. More...

 
    Johannes Kepler, Laws Planetary Motion
  Johannes Kepler, Laws Planetary Motion
Johannes Kepler was a German mathematician, astronomer, and astrologer. A key figure in the 17th century scientific revolution, he is best known for his laws of planetary motion, based on his works Astronomia nova, Harmonices Mundi, and Epitome of Co...
 
    Albert Einstein, Relativity Theory - 1905
  Albert Einstein, Relativity Theory - 1905
Albert Einstein was a German-born theoretical physicist. Einstein developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). Einstein's work is also known for its influence on the philosophy of science...
 
    Friedmann, Expanding Universe Solution
  Friedmann, Expanding Universe Solution
Alexander Alexandrovich Friedman or Friedmann was a Russian and Soviet cosmologist and mathematician. He discovered the expanding-universe solution to the general relativity field equations in 1922, which was corroborated by Edwin Hubble's observatio...
 
    Lemaître, Proposed Big Bang Theory
  Lemaître, Proposed Big Bang Theory
Georges Lemaître was a Belgian Roman Catholic priest, honorary prelate, professor of physics and astronomer at the Catholic University of Leuven. He sometimes used the title Abbé or Monseigneur. Lemaître proposed what became known as the Big Bang the...
 
    Fritz Zwicky, Existence of Dark Matter, 1933
  Fritz Zwicky, Existence of Dark Matter, 1933
Fritz Zwicky was a Swiss astronomer. He worked most of his life at the California Institute of Technology in the United States of America, where he made many important contributions in theoretical and observational astronomy. In 1933, Zwicky was the...
 
    Lyman Spitzer, Concept Telescopes in Outer Space
  Lyman Spitzer, Concept Telescopes in Outer Space
Lyman Strong Spitzer, Jr. was an American theoretical physicist, astronomer and mountaineer. As a scientist, he carried out research into star formation, plasma physics, and in 1946, conceived the idea of telescopes operating in outer space. Spitzer...
 
    Nasa, National Aeronautics and Space Act
  Nasa, National Aeronautics and Space Act
The National Aeronautics and Space Administration (NASA) is the United States government agency that is responsible for the civilian space program as well as for aeronautics and aerospace research. President Dwight D. Eisenhower established the Na...
 
       
 
         
          2019 © Timeline Index | Webwork.Amsterdam