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Milky Way

(Encyclopedia)CE5 Position of the sun in the Milky Way Milky Way, the galaxy of which the sun and solar system are a part, seen as a broad band of light arching across the night sky from horizon to horizon; if ...

Italy

(Encyclopedia)CE5 Italy ĭtˈəlē [key], Ital. Italia, officially Italian Republic, republic (2015 est. pop. 59,504,000), 116,303 sq mi (301,225 sq km), S Europe. It borders on France in the northwest, the Ligu...

Eisenhower, Dwight David

(Encyclopedia)Eisenhower, Dwight David īˈzənhouˌər [key], 1890–1969, American general and 34th President of the United States, b. Denison, Tex.; his nickname was “Ike.” In his farewell address as pr...

observatory, orbiting

(Encyclopedia)observatory, orbiting, research satellite designed to study solar radiation, electromagnetic radiation from distant stars, the earth's atmosphere, or the like. Because the atmosphere and other aspects...

Minnesota, state, United States

(Encyclopedia)CE5 Minnesota mĭnˌĭsōˈtə [key], upper midwestern state of the United States. It is bordered by Lake Superior and Wisconsin (E), Iowa (S), South Dakota and North Dakota (W), and the Canadian p...

Mars, in astronomy

(Encyclopedia)Mars, in astronomy, 4th planet from the sun, with an orbit next in order beyond that of the earth. Mars has two natural satellites, discovered by Asaph Hall in 1877. The innermost of these, Phobos...

Persian art and architecture

(Encyclopedia)Persian art and architecture, works of art and structures produced in the region of Asia traditionally known as Persia and now called Iran. Bounded by fierce mountains and deserts, the high plateau of...

Egyptian religion

(Encyclopedia)Egyptian religion, the religious beliefs of the ancient inhabitants of Egypt. Information concerning ancient Egyptian religion is abundant but unsatisfactory. Only certain parts of Egyptian religious ...

disarmament, nuclear

(Encyclopedia)disarmament, nuclear, the reduction and limitation of the various nuclear weapons in the military forces of the world's nations. The atomic bombs dropped (1945) on Japan by the United States in World ...

light

(Encyclopedia)light, visible electromagnetic radiation. Of the entire electromagnetic spectrum, the human eye is sensitive to only a tiny part, the part that is called light. The wavelengths of visible light range ...