The Search for Life in the Solar System by Tim Porter While generations of cloned mice and asteroids the size of Texas dominate science in popular culture today, a NASA probe is quietly…
Columbus, his journeys and legacy, and other great explorers and explorations Biographies of Famous Explorers Roald Amundsen Vasco Núnez de Balboa Ibn Batuta Richard Burton John…
(Encyclopedia) crater, circular, bowl-shaped depression on the earth's surface. (For a discussion of lunar craters, see moon.) Simple craters are bowl-shaped with a raised outer rim. Complex craters…
(Encyclopedia) Mexico, Span. México or Méjico, state (1990 pop. 9,815,795), 8,286 sq mi (21,461 sq km), S central Mexico. Toluca is the capital. The northern section of the state, containing most of…
(Encyclopedia) KrakatoaKrakatoakrākətōˈə, krä– [key] or KrakatauKrakataukräkätouˈ [key], volcanic island, c.5 sq mi (13 sq km), W Indonesia, in Sunda Strait between Java and Sumatra; rising to 2,667…
(Encyclopedia) OahuOahuōäˈh&oomacr; [key], island (1990 pop. 836,231), 593 sq mi (1,536 sq km), third largest and chief island of Hawaii, part of Honolulu co., between Molokai and Kauai. Oahu is…
(Encyclopedia) NayaritNayaritnäyärētˈ [key], state (1990 pop. 824,643), 10,547 sq mi (27,317 sq km), W Mexico, on the Pacific Ocean. Tepic is the capital. Mostly wild and rugged, Nayarit is broken by…
Information about the deadliest, largest, and most severe earthquakes on record past and present, including the frequency, magnitude, number of earthquakes, and number…
(Encyclopedia) ApenninesApenninesăpˈənīnz [key], Ital. Appennino, mountain system, running the entire length of the Italian peninsula. It extends south c.840 mi (1,350 km) from the Cadibona Pass in…
