Undated photo shows the Perseids meteor shower, dubbed as the "tears of Saint Lawrence," lights up at the night sky. The third largest-scale meteor shower in the northern hemisphere welcomes its best of the year. It will peak on August 13, the day before Double Seventh Festival, the traditional Chinese Valentine's Day. (Photo/ Zhao Chunliang)
Undated photo shows the Perseids meteor shower, dubbed as the "tears of Saint Lawrence," lights up at the night sky. The third largest-scale meteor shower in the northern hemisphere welcomes its best of the year. It will peak on August 13, the day before Double Seventh Festival, the traditional Chinese Valentine's Day. (Photo/ Mai Shangmin)
Undated photo shows the Perseids meteor shower, dubbed as the "tears of Saint Lawrence," lights up at the night sky. The third largest-scale meteor shower in the northern hemisphere welcomes its best of the year. It will peak on August 13, the day before Double Seventh Festival, the traditional Chinese Valentine's Day. (Photo/ Mai Shangmin)
Undated photo shows the Perseids meteor shower, dubbed as the "tears of Saint Lawrence," lights up at the night sky. The third largest-scale meteor shower in the northern hemisphere welcomes its best of the year. It will peak on August 13, the day before Double Seventh Festival, the traditional Chinese Valentine's Day. (Photo/ Mai Shangmin)
Undated photo shows the Perseids meteor shower, dubbed as the "tears of Saint Lawrence," lights up at the night sky. The third largest-scale meteor shower in the northern hemisphere welcomes its best of the year. It will peak on August 13, the day before Double Seventh Festival, the traditional Chinese Valentine's Day. (Photo/ Mai Shangmin)