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Hyades, in astronomy

(Encyclopedia)Hyades hīˈədēz [key], in astronomy, open star cluster in the constellation Taurus, located immediately to the right of the bright star Aldebaran. The cluster is about 130 light-years from the eart...

Gregory IX

(Encyclopedia)Gregory IX, 1143?–1241, pope (1227–41), an Italian named Ugolino di Segni, b. Anagni; successor of Honorius III. As cardinal under his uncle, Innocent III, he became, at St. Francis' request, the ...

Mithra

(Encyclopedia)Mithra mĭthˈrə [key], ancient god of Persia and India (where he was called Mitra). Until the 6th cent. b.c., Mithra was apparently a minor figure in the Zoroastrian system. Under the Achaemenids, M...

Newcomb, Simon

(Encyclopedia)Newcomb, Simon no͞oˈkəm, nyo͞oˈ– [key], 1835–1909, American astronomer, b. Nova Scotia, grad. Lawrence Scientific School, Harvard, 1858. Living in the United States from 1853, he was appointe...

Makeba, Miriam

(Encyclopedia)Makeba, Miriam məkāˈbə [key], 1932–2008, South African singer. She became the first black South African to achieve international fame and she played a fundamental role in introducing African mus...

Lawrence Berkeley National Laboratory

(Encyclopedia)Lawrence Berkeley National Laboratory and Lawrence Livermore National Laboratory, scientific research centers run by the Univ. of California, located in Berkeley, Calif., and Livermore, Calif., respec...

Liebknecht, Wilhelm

(Encyclopedia)Liebknecht, Wilhelm lēpˈkənĕkht [key], 1826–1900, German socialist leader and journalist. His participation in the revolution in Germany in 1848–49 forced him into exile, and he lived in Engl...

Lilburne, John

(Encyclopedia)Lilburne, John, 1614?–1657, English political leader and pamphleteer of the Levelers. He was tried before the court of the Star Chamber as early as 1638 for printing and distributing antiepiscopal w...

Leopold III, king of the Belgians

(Encyclopedia)Leopold III, 1901–83, king of the Belgians (1934–51), son and successor of Albert I. In 1936, Leopold announced a fundamental change in foreign policy; Belgium abandoned its military alliance with...

supersymmetry

(Encyclopedia)supersymmetry, in physics, theory concerning the relationship of the elementary particles called boson to those known as fermions, and vice versa, and linking the four fundamental forces. In supersymm...