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astronautics

(Encyclopedia)astronautics: see space science. ...

Arianespace

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

Meteosat

(Encyclopedia)Meteosat: 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 ...

NASA

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

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...

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 ...

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