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granite

(Encyclopedia)granite, coarse-grained igneous rock of even texture and light color, composed chiefly of quartz and feldspars. It usually contains small quantities of mica or hornblende, and minor accessory minerals...

North American Nebula

(Encyclopedia)North American Nebula, bright diffuse nebula in the northern constellation Cygnus about 1000 light-years away; cataloged as NGC 7000. It has a configuration resembling parts of Canada and the United S...

nucleosynthesis

(Encyclopedia)nucleosynthesis or nucleogenesis, in astronomy, production of all the chemical elements from the simplest element, hydrogen, by thermonuclear reactions within stars, supernovas, and in the big bang at...

League City

(Encyclopedia)League City, city (1990 pop. 30,159), Galveston co., SE Tex.; inc. 1961. The aeronautics industry is of prime importance; NASA's Lyndon B. Johnson Space Center is nearby. There is also diversified lig...

Brooklyn Center

(Encyclopedia)Brooklyn Center, city (2020 pop. 33,782), Hennepin co., SE Minn., a residential suburb of Minneapolis; inc. 1911. It has light industry and has been mar...

Richfield

(Encyclopedia)Richfield, city (1990 pop. 35,710), Hennepin co., SE Minn., a residential suburb of Minneapolis; settled c.1851, inc. 1964. There is diverse light manufacturing. Minneapolis–St. Paul International A...

Abington

(Encyclopedia)Abington, township (2020 pop. 58,502), Montgomery co., SE Pa., a residential suburb of Philadelphia; settled 1696, inc. 1906. The site of combat during the Revolutionary War, Abington has ...

Mercury, in astronomy

(Encyclopedia)Mercury, in astronomy, nearest planet to the sun, at a mean distance of 36 million mi (58 million km); its period of revolution is 88 days. Mercury passes through phases similar to those of the moon a...

Nelson, city, New Zealand

(Encyclopedia)Nelson, city (1996 pop. 40,242), N South Island, New Zealand, at the head of Tasman Bay. It is a center of fruit production, with other light industries. The Cawthron Institute for scientific research...

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