![](http://www.ecns.cn/hd/2020/03/23/5ea6f35bec7f4ae2b6f2fac2a2da8392.jpg)
An aurora is seen in the sky in Rovaniemi, Finland, March 20, 2020. (Photo/Agencies)
![](http://www.ecns.cn/hd/2020/03/23/c01308cd3e424d009e0bb070a8cc289b.jpg)
An aurora is seen in the sky in Rovaniemi, Finland, March 20, 2020. (Photo/Agencies)
![](http://www.ecns.cn/hd/2020/03/23/9934e76cd09d49e9856f66e59cbe3736.jpg)
An aurora is seen in the sky in Rovaniemi, Finland, March 20, 2020. (Photo/Agencies)