By Ross Brook Source: Inhabitat

The Aurora Borealis has brought visitors to Northern Europe for years, especially Finland, but these lights may find competition thanks to a new man-made phenomenon. Photographer Mika Wist captured photos of these new “urban light pillars” from his balcony when temperatures plunged to -19 °C / -2.2 °F earlier this week. So, what is causing these strange lights to occur?

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