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Hubble showed that, in our expanding universe, every galaxy is rushing away from us with a speed which is in direct proportion to its distance, known as Hubble’s Law, so that a galaxy that is twice as far away as another is receding twice as fast, one ten times as far away if receding ten times as fast, etc.
Edwin Hubble, American astronomer who played a crucial role in establishing the field of extragalactic astronomy and is generally regarded as the leading observational cosmologist of the 20th century. Learn more about Hubble and his work, including his notable research and discoveries.
Often called a "pioneer of the distant stars," astronomer Edwin Hubble (1889–1953) played a pivotal role in deciphering the vast and complex nature of the universe. His meticulous studies of spiral nebulae proved the existence of galaxies other than our own Milky Way.
This can be explained by the expansion of the Universe from a common origin, which would become known derisively as the Big Bang. The announcement 100 years ago cemented Hubble’s place in the ...
Hubble also demonstrated that galaxies farther away from us are receding faster than those nearby – a fundamental observation now known as Hubble’s Law. The idea of an expanding universe is a key underpinning of the Big Bang Theory. Hubble’s observations provided the earliest insight into the origins of our universe.
Big-bang model, widely held theory of the evolution of the universe. Its essential feature is the emergence of the universe from a state of extremely high temperature and density—the so-called big bang that occurred 13.8 billion years ago. Learn more about the big-bang model in this article.
Hubble’s work in astronomy in the 20th century became the foundation for Big Bang theory. Image is a screenshot from a Hubble Space Telescope video. Who was Edwin Hubble? Happy...
In 1929, Edwin Hubble announced that his observations of galaxies outside our own Milky Way showed that they were systematically moving away from us with a speed that was proportional to their distance from us.
We now know that the objects that Hubble observed are galaxies, similar to our own Milky Way, and that there are billions of them in the observable Universe. Hubble’s discovery provided additional evidence for what was to become known as Big Bang theory, first proposed by Georges Lemaître in 1927.
Hubble's and Humason's research work also helped prove that galaxies must come from a central point of origin, and was used by some scientists to support the Big Bang Theory—one of the...