![Natural light beam appears at Hemu Village, Altay, Northwest China\'s Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)](http://www.ecns.cn/hd/2019/01/16/5b8580f4fe1e49fa8af95f96069a48f5.jpg)
Natural light beam appears at Hemu Village, Altay, Northwest China's Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)
![Natural light beam appears at Hemu Village, Altay, Northwest China\'s Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)](http://www.ecns.cn/hd/2019/01/16/8d7fc0c5d1c04bd3ab8ac1fda5848c3b.jpg)
Natural light beam appears at Hemu Village, Altay, Northwest China's Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)
![Natural light beam appears at Hemu Village, Altay, Northwest China\'s Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)](http://www.ecns.cn/hd/2019/01/16/1ac398b0e05149009996e9e0b9da3367.jpg)
Natural light beam appears at Hemu Village, Altay, Northwest China's Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)
![Natural light beam appears at Hemu Village, Altay, Northwest China\'s Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)](http://www.ecns.cn/hd/2019/01/16/1bbe17416f0e49a5a98cc1c9078be459.jpg)
Natural light beam appears at Hemu Village, Altay, Northwest China's Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)
![Natural light beam appears at Hemu Village, Altay, Northwest China\'s Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)](http://www.ecns.cn/hd/2019/01/16/32f071222847444fa2d055377525f8ff.jpg)
Natural light beam appears at Hemu Village, Altay, Northwest China's Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)
![Natural light beam appears at Hemu Village, Altay, Northwest China\'s Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)](http://www.ecns.cn/hd/2019/01/16/d551b5206a3d47e29fa931ebc8a4fe1b.jpg)
Natural light beam appears at Hemu Village, Altay, Northwest China's Xinjiang Uygur Autonomous Region as temperatures drop to 30 minus degrees. The sword-like light beam straight into the starry sky is a natural phenomenon, the reflection of ice crystals in the cold night air. (Photo: China News Service/Lei Dongxiang)