Auroral display. 19th-century artwork of an aurora borealis (northern lights) display at Bosekop, Norway, in the period 1838-9. This coloured light di
Auroral display. 19th-century artwork of an aurora borealis (northern lights) display at Bosekop, Norway, in the period 1838-9. This coloured light display is visible in the night sky, usually only at high latitudes. It occurs when charged and energetic particles from the Sun are drawn by Earth's magnetic field to the polar regions. Hundreds of kilometres up, they collide with gas molecules and atoms, causing them to emit light. Artwork from 'A Complete Course of Meteorology' (1845) by German meteorologist Ludwig Kaemtz (1801-1867).
Size: 5444px × 3236px
Photo credit: © KING'S COLLEGE LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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