![](http://www.ecns.cn/hd/2020/02/08/eb5bbcf3ae914c10a3dfd9a9e1cf09a0.jpg)
An aurora is seen in the sky in Rovaniemi, Finland February 6, 2020. (Photo/Agencies)
![](http://www.ecns.cn/hd/2020/02/08/f6f2a2ba5eea438290a4939e2fda738d.jpg)
An aurora is seen in the sky in Rovaniemi, Finland February 6, 2020. (Photo/Agencies)
![](http://www.ecns.cn/hd/2020/02/08/2076dc045baa4cdc8ab1602e79ba4eb3.jpg)
An aurora is seen in the sky in Rovaniemi, Finland February 6, 2020. (Photo/Agencies)
![](http://www.ecns.cn/hd/2020/02/08/6eee618518d545cb88776d8d72341c35.jpg)
An aurora is seen in the sky in Rovaniemi, Finland February 6, 2020. (Photo/Agencies)