Zelenchukskaya
Coordinates: 43°51′N 41°36′E / 43.850°N 41.600°E
Zelenchukskaya (Russian: Зеленчу́кская) is a rural locality (a stanitsa) and the administrative center of Zelenchuksky District of the Karachay–Cherkess Republic, Russia, located on the Bolshoy Zelenchuk River. Population: 19,449 (2010 Census);21,025 (2002 Census);20,455 (1989 Census). In terms of population, it is the most populous rural locality in the republic.
The Special Astrophysical Observatory of the Russian Academy of Science is located to the south of the stanitsa. In 2015, it detected signals that might have come from a possible advanced extraterrestrial civilization, which are now being investigated by SETI.
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