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Canada

(Encyclopedia)CE5 CE5 Canada kănˈədə [key], independent nation (2020 est. pop. 37,742,154), 3,851,787 sq mi ...

Alaska

(Encyclopedia)CE5 Alaska əlăˈskə [key], largest in area of the United States but one of the smallest in population, occupying the northwest extremity of the North American continent, separated from the coter...

volcano

(Encyclopedia)volcano, vents or fissures in the earth's crust through which gases, molten rock, or lava, and solid fragments are discharged. Their study is called volcanology. The term volcano is commonly applied b...

space exploration

(Encyclopedia)CE5 Moon mission assembly CE5 Stages in a moon mission shown counterclockwise from launching on the first day to splashdown on the ninth day. space exploration, the investigation of physical co...

New Hampshire

(Encyclopedia)CE5 New Hampshire, one of the New England states of the NE United States. It is bordered by Massachusetts (S), Vermont, with the Connecticut River forming the boundary (W), the Canadian province of...

solar system

(Encyclopedia)CE5 Solar system CE5 solar system, the sun and the surrounding planets, natural satellites, dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the ...

moon

(Encyclopedia)CE5 The moon: Near side CE5 The moon: Far side moon, natural satellite of a planet (see satellite, natural) or dwarf planet, in particular, the single natural satellite of the earth. It is no...

Vermont

(Encyclopedia)CE5 Vermont vərmŏntˈ [key] [Fr.,=green mountain], New England state of the NE United States. It is bordered by New Hampshire, across the Connecticut River (E), Massachusetts (S), New York, with ...

railroad

(Encyclopedia)railroad or railway, form of transportation most commonly consisting of steel rails, called tracks, on which trains of freight cars, passenger cars, and other rolling stock are drawn by one locomotive...

Siberia

(Encyclopedia)Siberia sībērˈēə [key], Rus. Sibir, vast geographical region of Russia, covering c.2,900,000 sq mi (7,511,000 sq km) and having an estimated population (1992) of 32,459,000. Historically it has h...