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Edwin Hubble - Windows to the Universe
Portrait of Edwin Hubble
The Archives, California Institute of Technology

Edwin Hubble

Edwin Hubble was an American astronomer who lived between 1889-1953. He studied law at Oxford under a Rhodes scholarship before deciding on a career as an astronomer. This career eventually led to cosmology. His studies were later interruped by service in both World Wars.

Hubble's extensive observations of galaxies helped him develop the idea of an expanding universe, which forms the basis of modern cosmology.

He also identified a relationship between a galaxy's speed and its distance, the ratio of which is called Hubble's constant. A project of the Hubble telescope, currently exploring outer space, is to accurately measure this constant.


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The Cosmos

Cosmology is the study of the overall structure of the universe. And just what is the Universe? Quite simply, it is everything that exists. However, from Earth we cannot observe everything in the Universe....more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA