23.5 MB (3.9 MB compressed)
3500 x 2344 pixels
29.7 x 19.8 cm ⏐ 11.7 x 7.8 in (300dpi)
CHRIS MADELEY / SCIENCE PHOTO LIBRARY CHRIS MADELEY / SCIENCE PHOTO LIBRARY
Aurora borealis or northern lights display over a snow-covered landscape. Aurorae are caused by energetic charged particles from the Sun colliding with gas molecules in the upper atmosphere near the poles. Photographed in Alaska, USA.
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