Arkhangelsk | |
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State | Arkhangelsk Oblast |
Country | Russia |
Capital | |
Population | 350982 |
Arkhangelsk (UK: , US: ; Russian: Арха́нгельск, IPA: [ɐrˈxanɡʲɪlʲsk]), also known in English as Archangel and Archangelsk, is a city and the administrative center of Arkhangelsk Oblast, in the north of Western Russia. It lies on both banks of the Northern Dvina near its exit into the White Sea. The city spreads for over 40 kilometers (25 mi) along the banks of the river and numerous islands of its delta. Arkhangelsk was the chief seaport of medieval and early modern Russia until 1703 (when it was replaced by Saint Petersburg).
Tauá | |
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State | |
Country | |
Capital | |
Population | 56202 |
Tau Ceti f is a super-Earth or mini-Neptune orbiting Tau Ceti that was discovered in 2012 by statistical analyses of the star's variations in radial velocity, based on data obtained using HIRES, AAPS, and HARPS. It is of interest because its orbit places it in Tau Ceti's extended habitable zone, but a 2015 study implies that there may not be a detectable biosignature because it has only been in the temperate zone for less than one billion years.