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Cerium is a soft, ductile, silvery-white metallic chemical element with symbol Ce and atomic number 58. It tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. It is the se ...
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Cerium is a chemical element with symbol Ce and atomic number 58. It is a soft, silvery, ductile metal which easily oxidizes in air. Cerium was named after the dwarf planet Ceres (itself named for the ...
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The Centre for Research on Energy Security (CeRES) is an Indian research center focusing on Indian relations to energy and consequences on itself and the world, diplomatically, economically, etc. The ...
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Asteroids are minor planets that are not comets, especially those of the inner Solar System. They have also been called planetoids, especially the larger ones. These terms have historically been appli ...
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A planet (from Ancient Greek ast?? p?a??t??, meaning "wandering star") is an astronomical object orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, i ...
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