A shooting star, part of the 2013 Perseid meteor shower, across the sky over Yaowangtai, an ancient site in Yongji, North China's Shanxi province, on Aug 13, 2013, Qixi Festival, also known as Chinese Valentine's Day. The Perseid meteor shower occurs on August as the Earth, following its normal orbit around the Sun, intersects the orbit of dust particles left behind by comet Swift-Tuttle. [Photo by Liu Baocheng/Asianewsphoto]