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lunar exploration

(Encyclopedia)lunar exploration: see space exploration. ...

Arianespace

(Encyclopedia)Arianespace: see European Space Agency. ...

dwarf tree

(Encyclopedia)dwarf tree, in horticultural practice, a tree artificially kept to a smaller size than is normal for average members of the species. This is usually accomplished either by limiting its root space and ...

McDonald Observatory

(Encyclopedia)McDonald Observatory, astronomical observatory located on Mt. Locke, near Fort Davis, Tex.; founded in 1932, sponsored by the Univ. of Texas in cooperation with the Univ. of Chicago. Its equipment inc...

NASA

(Encyclopedia)NASA: see National Aeronautics and Space Administration. ...

Strategic Air Command

(Encyclopedia)Strategic Air Command (SAC), former command of the U.S. air force (see Air Force, United States Department of the) charged with organizing, training, equipping, administering, and preparing strategic ...

Sagan, Carl Edward

(Encyclopedia)Sagan, Carl Edward sāˈgən [key], 1934–96, American astronomer and popularizer of science, b. New York City. Early in his career he investigated radio emissions from Venus and concluded that the c...

European Astronaut Center

(Encyclopedia)European Astronaut Center (EAC): see European Space Agency. ...

Alabama, University of

(Encyclopedia)Alabama, University of, main campus at Tuscaloosa; state supported, coeducational; chartered 1820, opened 1831. An experimental station of the U.S. Bureau of Mines, the state natural history museum, t...

Libertyville

(Encyclopedia)Libertyville, village (1990 pop. 19,174), Lake co., NE Ill., in a lake area; inc. 1882. Paper products and electronic equipment are made. Adlai E. Stevenson had a home there. A naval training station ...