![Aurora Borealis seen over the Brecon Beacons, Wales, Britain - 17 Mar 2015 The Northern Lights are seen over Usk Reservoir at the Brecon Beacons, Wales, on March 17, 2015.](https://api.time.com/wp-content/uploads/2015/03/northern-lights-aurora-2015-07.jpg?quality=85&w=2400)
By TIME Staff
![Aurora Borealis seen over the Brecon Beacons, Wales, Britain - 17 Mar 2015 The Northern Lights are seen over Usk Reservoir at the Brecon Beacons, Wales, on March 17, 2015.](https://api.time.com/wp-content/uploads/2015/03/northern-lights-aurora-2015-07.jpg?quality=75&w=2400)
![The Northern Lights (Aurora borealis) above Salgotarjan The Northern Lights near Salgotarjan, Hungary, on March 18, 2015.](https://api.time.com/wp-content/uploads/2015/03/northern-lights-aurora-2015-06.jpg?quality=75&w=2400)
![Aurora Borealis visible over Lewis and Harris, UK The Northern Lights over Grimersta Lodge on the west coast of the Isle of Lewis on March 18, 2015.](https://api.time.com/wp-content/uploads/2015/03/northern-lights-aurora-2015-031.jpg?quality=75&w=2400)
![Aurora of the Northern Lights visible from Staffordshire The Northern Lights above the Staffordshire moorlands in England on March 17, 2015.](https://api.time.com/wp-content/uploads/2015/03/northern-lights-aurora-2015-13.jpg?quality=75&w=2400)
![Aurora Borealis visible over Lewis and Harris, UK The Northern Lights over Shawbost on the Isle of Lewis in Scotland's Outer Hebrides on March 18, 2015.](https://api.time.com/wp-content/uploads/2015/03/northern-lights-aurora-2015-02.jpg?quality=75&w=2400)
![The Northern Lights (Aurora borealis) above Pilisszentkereszt, The Northern Lights (Aurora borealis) are seen on the sky above Pilisszentkereszt, Hungary, on March 18, 2015.](https://api.time.com/wp-content/uploads/2015/03/northern-lights-aurora-2015-01.jpg?quality=75&w=2400)
![Aurora Borealis is visible over Lewis and Harris The Northern Lights over the Callanish Stones, Grimersta and Shawbost on Lewis and Harris hills on March 17, 2015.](https://api.time.com/wp-content/uploads/2015/03/northern-lights-aurora-2015-04.jpg?quality=75&w=2400)
![Aurora Borealis is visible over Lewis and Harris The Northern Lights over the Callanish Stones, Grimersta and Shawbost on Lewis and Harris hills on March 17, 2015.](https://api.time.com/wp-content/uploads/2015/03/northern-lights-aurora-2015-11.jpg?quality=75&w=2400)
![Northern Lights as seen in Germany The Northern Lights over a country road near Lietzen in Maerkisch-Oderland, Germany, on March 17, 2015.](https://api.time.com/wp-content/uploads/2015/03/northern-lights-aurora-2015-08.jpg?quality=75&w=2400)
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