| Ursa MajorUrsa Major is a constellation visible throughout the year in the northern hemisphere. Its name means Great Bear in Latin, and is derived from the legend of Callisto. Its seven brightest stars form a famous asterism known in North America as the Big Dipper | Ursa MinorUrsa Minor is a constellation in the northern sky, the name of which means "Smaller Bear" in Latin. It is one of the 88 modern constellations, and was also one of the 48 listed by Ptolemy. It is notable as the location of the north celestial pole, althoug | UruguayThe Eastern Republic of Uruguay (translated from the Spanish Republica Oriental del Uruguay , is a country in southern South America, bordered by Brazil to the north, the Uruguay River to the west, the estuary of the Rio de la Plata (River Plate) to the s |
| UranusUranus can refer to many things: In Greek mythology, Ouranos is the ancient deity of the heavens, the earliest supreme god. Uranus is the Latin name of Ouranos. Uranus is the seventh planet from the Sun, and is named after the Roman god. Uranus is a film | Ursula K. Le GuinUrsula Kroeber Le Guin (born October 21, 1929), is an American author. While she has written novels, poetry, childen's books, and essays, she is best known for her science fiction and fantasy, which she has written in the form of novels and short stories. | UrUr (or Urim was an ancient city in Mesopotamia, originally located near the mouth of the Euphrates and Tigris rivers on the Persian Gulf and close to Eridu. The remains are now well inland in present-day Iraq, south of the Euphrates at 30° 95' N. 46° 5' E |
| Urho KekkonenUrho Kaleva Kekkonen ( September 3, 1900 August 31, 1986) was a Finnish politician who served as Prime Minister of Finland from 1950 to 1956, and as the most long-standing president of Finland from 1956 to 1981. Kekkonen continued the neutrality policy of | UrologyUrology is the field of medicine that focuses on the urinary tracts of males and females, and of the male reproductive system. It is "multidisciplinary" in that the discipline includes management of "medical" (ie. non-surgical) problems such as urinary in | Urea cycleThe Urea Cycle is a cycle of biochemical reactions occurring in many animal organisms that produces urea from ammonia. This cycle, also known as ornithine cycle, was the first metabolic cycle discovered (Krebs and Hensenleit, 1932) Urea is much less toxic |