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Hace 1 día · In 1785, the astronomer William Herschel noted a faint reddish hue in the core region of Andromeda. He believed Andromeda to be the nearest of all the "great nebulae", ... However, infrared data from the 2MASS survey and the Spitzer Space Telescope showed that Andromeda is actually a barred spiral galaxy, ...
Hace 4 horas · History Early years (1945–1949) The Korean People's Army Air Force began as the "Korean Aviation Society (조선 항공대)" in 1945. It was organized along the lines of flying clubs in the Soviet Union.In 1946, the society became a military organization and became an aviation division of the Korean People's Army (KPA). It became a branch of the army in its own right in November 1948.
