The Aurora Borealis illuminates the sky of Lapland region, in Inari, Finland, on December 25, 2017. - Irene Stachon / Lehtikuva / Reuters

© Irene Stachon / Lehtikuva / Reuters            

The Aurora Borealis illuminates the sky of Lapland region, in Inari, Finland, on December 25, 2017.