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Aurora borealis over Iceland
Aurora borealis over Iceland. The aurora borealis (the northern lights) is a coloured light display that is visible in the night sky, usually only at high latitudes. It occurs when charged and energetic particles from the Sun (the solar wind) 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., Photo by OLIVIER VANDEGINSTE/SCIENCE PHOTO LIBRARY
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0.3 MB
724 x 483 px
6.1 x 4.1 cm
$ 100.00
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3.3 MB
2290 x 1527 px
19.4 x 12.9 cm
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19 MB
5464 x 3643 px
46.3 x 30.8 cm
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