A Chinese astronaut has reported hearing a strange “knocking” sound in space – and no one is quite sure what it is. The rest of this article is behind a paywall. Please sign in or subscribe to access ...

The researchers identified sounds for black, quillback, copper, canary and vermillion rockfish, as well as ling cod, kelp ...

Yang Liwei, China's first astronaut, has revealed that he heard a mysterious knock while alone in a tiny spacecraft during his maiden flight in space. In an interview, Yang said that he recalled ...

The mysterious knocking sounds heard beneath the Atlantic Ocean that gave false hope that the Titan submersible and its occupants could be rescued has been revealed in a haunting new audio clip. After ...