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Space weather aurora
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- Title Space weather aurora
- Released 19/03/2013 1:27 pm
- Copyright Kate Arkless Gray (@SpaceKate)
The Northern Lights – Aurora Borealis – above Finnish Lapland near Sodankylä during ESA’s space weather conference. Northern Lights occur when charged particles from the Sun hit Earth’s atmosphere.
The green vertical stripe in the picture is a laser beam from the Finnish Meteorological Institute’s Arctic Research Centre to measure cloud particles and aerosols in the upper atmosphere.