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sun, in astronomy

(Encyclopedia)CE5 Structure of the sun sun, intensely hot, self-luminous body of gases at the center of the solar system. Its gravitational attraction maintains the planets, comets, and other bodies of the sola...

Enlightenment

(Encyclopedia)Enlightenment, term applied to the mainstream of thought of 18th-century Europe and America. Centered in Paris, the movement gained international character at cosmopolitan salons. Masonic lodges pla...

space science

(Encyclopedia)space science, body of scientific knowledge as it relates to space exploration; it is sometimes also called astronautics. Space science draws on the conventional sciences of physics, chemistry, biolog...

modern architecture

(Encyclopedia)modern architecture, new architectural style that emerged in many Western countries in the decade after World War I. It was based on the “rational” use of modern materials, the principles of funct...

Jupiter, in astronomy

(Encyclopedia)Jupiter jo͞oˈpətər [key], in astronomy, 5th planet from the sun and largest planet of the solar system. Astronomers have discovered 79 satellites orbiting Jupiter, but five of those, small sate...

union, labor

(Encyclopedia)union, labor, association of workers for the purpose of improving their economic status and working conditions through collective bargaining with employers. Historically there have been two chief type...

Parliament

(Encyclopedia)Parliament, legislative assembly of the United Kingdom of Great Britain and Northern Ireland. Over the centuries it has become more than a legislative body; it is the sovereign power of Great Britain,...

Stalin, Joseph Vissarionovich

(Encyclopedia)Stalin, Joseph Vissarionovich stäˈlĭn, Rus. vĭsəryôˈnəvĭch stäˈlyĭn [key], 1879–1953, Soviet Communist leader and head of the USSR from the death of V. I. Lenin (1924) until his own deat...

Prussia

(Encyclopedia)Prussia prŭshˈə [key], Ger. Preussen, former state, the largest and most important of the German states. Berlin was the capital. The chief member of the German Empire (1871–1918) and a state of t...

Romania

(Encyclopedia)CE5 Romania ro͞o– [key], republic (2015 est. pop. 19,877,000), 91,699 sq mi (237,500 sq km), SE Europe. It borders on Hungary in the northwest, on Serbia in the southwest, on Bulgaria in the sou...