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aurora borealis
(Encyclopedia)aurora borealis ôstrāˈlĭs [key], luminous display of various forms and colors seen in the night sky. The aurora borealis of the Northern Hemisphere is often called the northern lights, and the aur...aurora australis
(Encyclopedia)aurora australis: see aurora borealis. ...northern lights
(Encyclopedia)northern lights: see aurora borealis. ...southern lights
(Encyclopedia)southern lights: see aurora borealis. ...Corona Borealis
(Encyclopedia)Corona Borealis bôrēălˈəs [key] [Lat.,=the northern crown], northern constellation lying between Hercules and Boötes. Its name derives from the crown Bacchus gave Ariadne when she was deserted b...Ångström, Anders Jöns
(Encyclopedia)Ångström, Anders Jöns änˈdərs yöns ōngˈström [key], 1814–74, Swedish physicist. He was educated at the Univ. of Uppsala and in 1839 became a member of its faculty. He is particularly noted...Birkeland, Kristian
(Encyclopedia)Birkeland, Kristian or Olaf Christian krĭsˈtyän bērˈkəlän, ōˈläv [key], 1867–1917, Norwegian physicist. From 1898 Birkeland was a professor at the Univ. of Christiania (now Oslo). Noted fo...airglow
(Encyclopedia)airglow, faint diffuse illumination of the sky originating in the upper atmosphere. Although it occurs at all times of day throughout the upper atmosphere, it is most typically visible to an observer ...Celsius, Anders
(Encyclopedia)Celsius, Anders änˈdərs sĕlˈsēŭs [key], 1701–44, Swedish astronomer. While professor of astronomy at the Univ. of Uppsala (1730–44), he traveled through Germany, France, and Italy, visiting...Aurora, cities, United States
(Encyclopedia)Aurora ərôrˈə, ô– [key]. 1 City (2020 pop. 386,261), Adams and Arapahoe counties, N central Colo., a growing suburb on the east side of Denver; inc. 1903. Founded d...Browse by Subject
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