The mysterious "alien" seems to rebel against the Earth frequently. There were reports of a mysterious halo appearing in the UK sky yesterday, and today, a mysterious unidentified flying object was photographed in the night sky over Shanghai and Beijing. Could it really be aliens' UFO? There are still many unsolved mysteries in the world waiting for us to explore. The halos released by the unidentified flying objects in the night sky over Shanghai and Beijing have excited Chinese UFO enthusiasts extraordinarily.