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    • Types of Iridescent Clouds - Nature

      Nature· 4 days ago

      IN the winter of 1930–31, I was measuring the height of the aurora in northern Ontario. On one occasion there had been a well-developed single arc which had remained unusually ...

    • British Astronomical Association - Nature

      Nature· 13 hours ago

      Fourteen sections are now in existence, and valuable work is still being done in spite of the difficulties of war conditions. Novices need not be deterred even if they have very little instrumental ...

    • The Aurora 1 - Nature

      Nature· 4 days ago

      II. AS we have said, it was net uncommon at the Vega's winter quarters to see two or more auroral-arcs, one of which was generally the “common arc.” The second was nearly ...

    • Auroral Observations in the Antarctic - Nature

      Nature· 4 days ago

      IN NATURE for April 11 last Dr. Chree reviewed Sir Douglas Mawson's paper on “Auroral Observations at the Cape Royds Station, Antarctica,” and directed attention to the impression ...

    • Aurora Fire Department launches new open data website

      Chicago Tribune· 3 days ago

      The Aurora Fire Department, in collaboration with the city’s Data and Analytics Division, has launched a new public website to provide data about the fire department’s operations ...

    • The Aurora Borealis of Feb. 4th - Nature

      Nature· 4 days ago

      The higher part of the sky seemed covered with bright rose-coloured clouds, which, from the dark masses of clouds passing underneath, seemed continually to be shifting in position. Intervals ...

    • Auroras - Nature

      Nature· 4 days ago

      It is stated that on November 4 one of the finest auroras of the year was visible at Throndhjem, Norway...