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Venus, in astronomy

(Encyclopedia)Venus, in astronomy, 2d planet from the sun; it is often called the evening star or morning star and is brighter than any object in the sky except the sun and the moon. Because its orbit lies between ...

ultraviolet astronomy

(Encyclopedia)ultraviolet astronomy, study of celestial objects by means of the ultraviolet radiation they emit, in the wavelength range from about 90 to about 350 nanometers. Ultraviolet (UV) line spectrum measure...

Hesse

(Encyclopedia)Hesse hĕs, hēsˈē, hĕsˈə [key], Ger. Hessen, state, 8,150 sq mi (24,604 sq km),...

Dresden

(Encyclopedia)Dresden drĕzˈdən [key], city, capital of Saxony, E central Germany, on the Elbe River. It ...

Cage, John Milton, Jr.

(Encyclopedia)Cage, John Milton Jr., 1912–92, American composer, b. Los Angeles. A leading figure in the musical avant-garde from the late 1930s, he attended Pomona...

Bern

(Encyclopedia)Bern or Berne bĕrn [key], canton, 2,658 sq mi (6,883 sq km), W central Switzerland. The seco...

gamma-ray astronomy

(Encyclopedia)gamma-ray astronomy, study of astronomical objects by analysis of the most energetic electromagnetic radiation they emit. Gamma rays are shorter in wavelength and hence more energetic than X rays (see...

Minneapolis

(Encyclopedia)Minneapolis mĭnˌēăpˈəlĭs [key], city (2020 pop. 429,606), seat of Hennepin co., E Minn., at the ...

San Diego

(Encyclopedia)San Diego săn dēāˈgō [key], city (1990 pop. 1,110,549), seat of San Diego co., S Calif., on San Diego Bay; inc. 1850. San Diego includes the unincorporated communities of La Jolla and Spring Vall...

Schoenberg, Arnold

(Encyclopedia)Schoenberg, Arnold ärˈnôlt shönˈbĕrkh [key], 1874–1951, Austrian composer, b. Vienna. Before he became a U.S. citizen in 1941 he spelled his name Schönberg. He revolutionized modern music by ...