The Northern Lights have lit up the skies above Scotland, Canada and Norway after the biggest solar storm in more than six years bombarded Earth with radiation.
The Canadian Space Agency posted a geomagnetic storm warning on Tuesday after residents were also treated to a spectacular show in the night sky.
Ken Kennedy, director of the Aurora section of the British Astronomical Association, said that the lights, also known as the aurora borealis, may be visible for a few more days.
Auroras seen from Norway: A spectacular 'coronal mass ejection' following a solar flare has caused magnetic storms- but rarely are they do form such amazing shapes as this bird-like creation
The northern lights are caused by particles from the sun interacting with our atmosphere - and create spectacular displays of green light
Geomagnetic storms cause awesome sights, but they can also bring trouble.
According to the National Oceanic and Atmospheric Administration, problems can include current surges in power lines, and interference in the broadcast of radio, TV and telephone signals.
Radiation from Sunday's flare arrived at Earth an hour later and will probably continue through until Wednesday, NOAA experts say. Levels are considered strong but other storms have been more severe.
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