- Edwin Powell,1889–1953, U.S. astronomer: pioneer in extragalactic research.
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- Edwin Powell. 1889–1953, US astronomer, noted for his investigations of nebulae and the recession of the galaxies
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for edwin hubble
space telescope placed in orbit 1990, named for U.S. astronomer Edwin P. Hubble (1889-1953).
Online Etymology Dictionary, © 2010 Douglas Harper
- American astronomer who demonstrated that there are galaxies beyond our own and that they are receding from ours, providing strong evidence that the universe is expanding. Hubble also established the first measurements for the age and radius of the known universe, and his methods for determining them remain in use today.
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