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Hubble, Edwin Powell
(Encyclopedia)Hubble, Edwin Powell, 1889–1953, American astronomer, b. Marshfield, Mo. He did research (1914–17) at Yerkes Observatory, and joined (1919) the staff of Mt. Wilson Observatory, Pasadena, Calif., o...Sandage, Allan Rex
(Encyclopedia)Sandage, Allan Rex, 1926–2010, American astronomer, b. Iowa City, Iowa, Ph.D. California Institute of Technology, 1953. He was a graduate student under Walter Baade and an assistant to Edwin Hubble....Hubble's law
(Encyclopedia)Hubble's law, in astronomy, statement that the distances between galaxies (see galaxy) or clusters of galaxies are continuously increasing and that therefore the universe is expanding. Hubble's law ...dark energy
(Encyclopedia)dark energy, repulsive force that opposes the self-attraction of matter (see gravitation) and causes the expansion of the universe to accelerate. The search for dark energy was triggered by the discov...Lowell Observatory
(Encyclopedia)Lowell Observatory, astronomical observatory located in Flagstaff, Ariz.; it was founded in 1894 by Percival Lowell, the American astronomer who popularized the idea that Mars might support intelligen...Powell, Dawn
(Encyclopedia)Powell, Dawn, 1896–1965, American novelist, b. Mt. Gilead, Ohio. She came to New York City in 1918 and settled several years later in Greenwich Village, where she spent most of the rest of her life ...Baden-Powell of Gilwell, Robert Stephenson Smyth Baden-Powell, 1st Baron
(Encyclopedia)Baden-Powell of Gilwell, Robert Stephenson Smyth Baden-Powell, 1st Baron bāˈdən-pōˈəl [key], 1857–1941, British soldier, founder of the Boy Scouts (see Scouts). He saw much active service in I...galaxy
(Encyclopedia) CE5 Hubble classification of galaxies: Elliptical galaxies (E) are classified according to the degree of flattening of the ellipse. Spiral galaxies (S) and barred spiral galaxies (SB) are classifie...Powell, William
(Encyclopedia)Powell, William, 1892–1984, American movie actor, b. Pittsburgh. Powell made his stage debut in 1912. He played the dapper villain in such early films as Sherlock Holmes (1921), Romola (1924), and B...Powell, Colin Luther
(Encyclopedia)Powell, Colin Luther, 1937–2021, U.S. army general and government official, b. New York City, grad., City College (B.S., 1958); George Washington Univ...Browse by Subject
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